The most negative electron affinity is most likely associated with which type of atoms

Answers

Answer 1
Final answer:

The atoms with the most negative electron affinity are usually nonmetals, especially halogens. They have a strong desire to gain electrons to fulfill their valence shells, making them more stable. For example, Fluorine has the highest electron affinity.

Explanation:

Generally, atoms with the most negative electron affinity are commonly nonmetals, specifically halogens. Electron affinity is a measure of how much an atom wants to accept an electron. A more negative value represents a stronger desire to gain electrons. This eagerness to attract electrons arises primarily because these atoms are only one electron short of filling their valence shells, which makes them more stable. For instance, the halogen Fluorine has the most negative electron affinity, as it greedily accepts electrons to complete its valence shell and achieve a stable noble gas configuration.

Learn more about Electron Affinity here:

https://brainly.com/question/34135603

#SPJ12


Related Questions

Why are weight and mass used synonymously on Earth?

Answers

Actually mass and weight are two different things but most people did not understand the difference between them. And they are used synonymously on the earth. Mass is the measure of the amount of matter and weight is the measure of how the force of gravity acts on the mass that is Weight = mass x force of gravity. And they are also directly proportional to each other that is also the reason both terms are used synonymously.

The difference between mass and time is the influence of the earth's gravitational force on objects

Further explanation

In general, some people equate mass and weight.

Mass is one of the principal quantities, which is related to the matter in the matter, whereas weight is a force that leads to the center of the earth which is subject to the earth to matter (Earth's gravitational force)

So that the mass does not depend on the location of the object, while the weight can change depending on the position of the object

In international standards, the mass unit is kg while the weight is in units of newton

1 kg itself is the mass of a cylinder made of platinum-iridium

While the standard mass of an atom is determined according to the carbon-12 atomic mass of 12 atomic mass units

1 atomic mass unit comparable to 1.6605402.10-17 kg

Measuring the atomic mass using a mass spectrometer.

The mass itself can be measured by the arm balance while the weight is measured by the spring balance

One equation that can relate mass and force (weight) is

W = m.g

W = weight, N

m = mass, kg

g = gravity acceleration, m / s2

Learn more

statements can be made about mass and weight

https://brainly.com/question/2976693

weight on Earth and moon

https://brainly.com/question/3908593

units are used to measure mass and weight

https://brainly.com/question/1440987

Keywords: mass, weight, gravity

Which form of investment has the most amount of risk involved?
savings account
checking account
mutual fund

Answers

Mutual fund, i think.

Answer:

mutual fund is a correct answer.

Explanation:

Mutual fund is a form of investment which has the most amount of risk involved.

In Mutual fund the most amount of risk involved are:

Market risk is there which causes losses of the investor if the performance of the market is not good.Management risk is there if there is any change in the management action and team, it can affect the price share of the company.Liquidity risk is there in the Mutual fund.

Thus Mutual fund has the most amount of risk involved.

When non metals form ions what ions do they tend to form?

Answers

Non-metals have a larger number of outer electrons called valence electrons. Therefore, it is easier for them to "steal" valance electrons from other elements with fewer valence electrons(usually metals) 

For example, Chlorine(Cl) has 7 ve-. When forming an ion it will steal one electron from a metal. and gain a charge of -1. Because the ion is NEGATIVELY charged, it will be called an anion. 

Nonmetals form anions.

Vocab:
cation: 
Paws-itively charged ions (get it? because its a CAT ion?) 
anion:
negatively charged ions

Final answer:

In chemical reactions, nonmetals generally gain electrons to form negatively charged ions called anions, achieving a stable electronic state like the next noble gas.

Explanation:

When nonmetals form ions, they typically gain electrons to form negatively charged ions known as anions. This process results in nonmetals achieving a stable electronic configuration that is similar to the one of the next noble gas in the periodic table.

Nonmetals, particularly those in groups 16 and 17, and to a lesser extent those in Group 15, have a high electronegativity which drives them to gain electrons and form anions such as the chloride ion (Cl-), the nitride ion (N3-), and the selenide ion (Se2-). Unlike metals that typically lose electrons to form cations, nonmetals do not form monatomic positive ions (cations) in normal chemical processes due to their high ionization energies.

How many milliliters of 0.120 m naoh are required to titrate 50.0 ml of 0.0998 m benzoic acid to the equivalence point? the ka of benzoic acid is 6.3 ⋅ 10-5?

Answers

To reach the equivalence point in the titration of 50.0 mL of 0.0998 M benzoic acid with 0.120 M NaOH, 41.58 mL of NaOH is required.

The student is asking how to calculate the volume of 0.120 M NaOH required to neutralize a given volume and concentration of benzoic acid in a titration process. Since benzoic acid is a monoprotic acid, it will react with NaOH in a 1:1 mole ratio.

To solve this, we use the formula:

molarity of acid (Macid) imes volume of acid (Vacid) = molarity of base (Mbase) imes volume of base (Vbase)

Substitute the known values into the equation to find the unknown volume of NaOH:

Macid = 0.0998 M

Vacid = 50.0 mL

Mbase = 0.120 M

Vbase = ?

Rearrange the equation to solve for Vbase:

Vbase = (Macid x Vacid) / Mbase

Vbase = (0.0998 M x 50.0 mL) / 0.120 M

Vbase = 41.58 mL

Therefore, 41.58 mL of 0.120 M NaOH is required to reach the equivalence point in the titration of 50.0 mL of 0.0998 M benzoic acid.

How are metals, metalloid and nonmetals separated on the periodic table?

Answers

Hi there,
The metals (green in the table), non metals (orange), and metalloid (blue).

Hope this helps :))

~Top

Which of these elements would have the lowest first ionization energy?

Answers

Among the elements listed, potassium (K) would have the lowest first ionization energy.

The element with the lowest first ionization energy is potassium (K). In general, elements in group 1A of the periodic table, also known as alkali metals, have the lowest first ionization energies.

This is due to their electron configuration, which features a single valence electron in the outermost shell, held relatively loosely due to the shielding effect of inner electrons and the large atomic size.

As a result, it requires less energy to remove this outer electron compared to other elements. Potassium, located in group 1A, has an atomic number of 19 and exhibits this characteristic exceptionally well.

Therefore, among the elements listed, potassium (K) would have the lowest first ionization energy.

Complete question :-

Which element has the lowest first ionization energy?
a) As
b) P
c) K
d) Bi
e) Sb

What physically breaks hydrogen bonds between water molecules as ice melts? what physically breaks hydrogen bonds between water molecules as ice melts? covalent bonds of water molecules movement of water molecules mass of water molecules polarity of water molecules?

Answers

Movement of water molecules breaks the hydrogen bond between water molecules when ice melts. This is because heat energy is added to ice in order for it to melt, so the water molecules start moving at a faster rate.
Final answer:

Hydrogen bonds between water molecules are broken when ice melts as a result of increased kinetic energy of the water molecules, which comes with increased temperature. As the water molecules move past each other, the hydrogen bonds are naturally broken. Conversely, these bonds remain intact as water freezes, contributing to the less dense nature of ice compared to liquid water.

Explanation:

In the process of ice melting, the hydrogen bonds between water molecules are broken due to the kinetic energy of the water molecules, which increases as the temperature increases. The water molecules move and slide past each other, causing the bonds to break.

Hydrogen bonds regularly form and break in liquid water, but when the temperature drops and water freezes, a crystalline structure is formed, which is maintained by hydrogen bonding as there is not enough energy to break these bonds. This characteristic makes ice less dense than liquid water, an unusual property when compared to other liquids.

Learn more about Hydrogen Bonds here:

https://brainly.com/question/30885458

#SPJ12

Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. 61,103 = _____ 6.11 x 10 4 6.1103 x 10 4 6 x 10 4

Answers

Final answer:

To express 87,449 in scientific notation with four significant figures, it's written as 8.745 × 104. The number 0.000066600 in scientific notation with five significant figures is expressed as 6.6600 × 10-5.

Explanation:

To express the number 87,449 in scientific notation with four significant figures, you need to place the decimal after the first digit and count the number of places you move it. In this case, the decimal is moved 4 places to the left: 8.7449 becomes 8.744. Now, we need just four significant figures, so it rounds to 8.745. This gives us 8.745 × 10 to the power of 4, or 8.745 × 104.

Writing the number 0.000066600 in scientific notation with five significant figures involves moving the decimal point 5 places to the right, giving us 6.6600 which rounds to 6.6600 with five significant figures. This becomes 6.6600 × 10 to the negative fifth power, or 6.6600 × 10-5.

A blood test shows clumps only in wells containing anti-A and anti-B antibodies. The Rhesus test was negative. Which is the correct blood type?
~ A-
~ B+
~ A+
~ AB-

Answers

Answer:

AB negative.

Explanation:

Four major types of blood group found in humans are A, B, AB and O. The rhesus factors determines whether the blood group is positive or negative. Karl Landsteiner explained the different types of blood group.

The blood test shows clumping in the wells with  anti-A and anti-B antibodies. The blood group is AB because AB blood group has both the antigens A and B, shows clumping in both the anti-A and anti-B antibodies. The rhesus test is negative indicates that the blood type is negative as the rhesus protein is absent on the surface of blood cells. Hence, the individual has AB- blood type.

Thus, the correct answer is option (4).

Answer:

AB -

Explanation:

took it

A gas is most likely to exist at which of the following conditions?
High temperatures and high pressures
High temperatures and low pressures
Low temperatures and high pressures
Low temperatures and low pressures

Answers

High temperatures and low pressure. Low pressure, most of the time, is correlated with high temperatures.

Hope this helps!

Answer: Option (b) is the correct answer.

Explanation:

When we heat a solid substance at high temperature then it changes into liquid state and then into gaseous state.

For example, when water is heated above 100 degree celsius then it changes into vapors.

When low pressure is provided to a gas then its molecules are able to move easily from one place to another.

Therefore, a gas is most likely to exist at high temperature and low pressure.

According to the equation below, what is the enthalpy change when 400.0 g of propane is burned in excess oxygen? c3h8 (g) + 5o2 (g) ) ↔ 3co2 (g) + 4h2o (l) δh = -2221kj

Answers

The heat released by one mole of propane gas is given, -2221 kJ. Thus 400 g or 9 moles of propane gas will release - 20190 kJ of heat energy.

What is combustion?

Combustion is the reaction of a substance with atmospheric oxygen to produce water and carbon dioxide. The process release heat energy since combustion reactions are exothermic.

It is given that one mole of propane gas produces - 2221 kJ.

molar mass = 44 g/mol

number of moles in 400 g = 400 /44 = 9 moles.

One mole of propane gas when combines with excess oxygen produces - 2221 kJ of energy. Hence, heat released by 9 moles is calculated as follows:

The heat released from 9 moles = 9 ×  - 2221 kJ = - 20190 kJ.

Therefore, enthalpy change in the combustion of 400 g of propane is - - 20190 kJ.

To find more on combustion, refer here:

https://brainly.com/question/15117038

#SPJ2

Using electron configurations, explain why the halogens readily react with the alkali metals to form salts

Answers

halogen react with alkali metals because of their valence electrons. Halogens are just one electron short of being a stable wanna be "noble gas" so they "take or borrow" an electron. alkali metals have one too many valence electrons to be a noble gas, so they "give or lend" an electron.

this is why they are so compatible.
EXAMPLE

NaCl= Na+ +Cl-

Sodium(Na) "gives" its extra electron in order to become stable and Chlorine(Cl) "takes" Na extra electron in order to become stable

When metals and non metals combine in fixed proportion then a chemical compound is formed. To gain stability and octet, halogens readily react with the alkali metals to form salts.

.

What is chemical formula?

Chemical formula is a formula where cation and anion combine to form a molecule in fixed proportion. Metals combine in form of cation and non metals combine in form of anion. the overall charge of the molecule is zero that is molecule is neutral. The overall charge of the molecule is zero that is molecule is neutral.

The electronic configuration of halogen is ns²np⁵ and the electronic configuration of Alkali metals are ns¹. As halogens are very electronegative atom it can gain electrons from the alkali metals to complete its octet and hence gain stability.

Therefore, to gain stability and octet, halogens readily react with the alkali metals to form salts.

To learn more about Chemical formula, here:

https://brainly.com/question/28522480

#SPJ5

Which two minerals are softer than a human finger nail
1)calcite and halite
2)sulfer and fluoriye
3)graphite and talc
4)pyrite and magnetlite

Answers

the answer is 1...................

The graphite and talc minerals are softer than a human fingernail. Therefore, option (3) is correct.

What is the hardness of minerals?

The hardness of a mineral measures its relative resistance to scratching,  by scratching the mineral against another substance whose hardness is known on the Mohs Hardness Scale.

The Mohs scale of mineral hardness is characterizing the scratch resistance of several minerals by measuring the ability of harder material to scratch softer material.

This method is useful for the identification of minerals in the field because we can test minerals against some common objects such as fingernails, pence, nails, etc. The scale is named behind the name of its creator the German mineralogist Friedrich Mohs.

The hardness of the fingernail is 2.5 while the hardness of the talc is 1 and the hardness of the graphite lies between 1 to 2. Therefore, graphite and talc are minerals that are softer than a human fingernail.

Learn more about the hardness of minerals, here:

https://brainly.com/question/13584611

#SPJ2

The light reactions of photosynthesis use _____ and produce _____. (activity 10b) nadph ... nadp+ water ... nadph carbon dioxide ... oxygen carbon dioxide ... sugar nadph ... oxygen

Answers

During the light reactions of photosynthesis, the energy from the sun is converted into few amounts of ATP and an energy carrier called NADPH. This is associated with the consumption of water and release of oxygen. So from the choices above, the correct answers are:

 

The light reactions of photosynthesis use water and produce nadph.

In order for condensation to occur, air must be ________________ with water vapor.

Answers

h20 ix the la respuet

What is the pH of a 0.025 M [OH−] solution?

0.94

1.60

9.60

12.40

Answers

You can use the pOH to solve for the pH.

pOH = -log([OH-])
14 = pH + pOH

The pH of 0.025 M [OH-] solution would be 12.4

pH

The pH is the degree of acidity or alkalinity of a substance.

Mathematically,

pH = 14 - pOH

pH = -log [H+]

pOH = -log [OH-]

In this case, [OH-] = 0.025 M

Thus

pOH = -log [OH-]

           = -log 0.025

              = 1.6

pH = 14 - 1.6

       = 12.4

More on pH can be found here: https://brainly.com/question/491373

A brick has dimensions of 25 cm x 5.0 cm x 15 cm. What is the volume of the brick in cubic meters?

Answers

the answer is 0.001875 cubic meters.

Explanation:

It is known that a brick has the shape of a rectangle. And formula to calculate the volume of a rectangle is as follows.

                     Volume of rectangle = length × height × width

Since, it is given that length is 25 cm, height is 5 cm and width is 15 cm. Therefore, calculate the volume of brick as follows.

                 Volume of brick = length × height × width

                                             = 25 cm × 5 cm × 15 cm

                                             = 1875 [tex]cm^{3}[/tex]

Hence, we can conclude that volume of the brick is 1875 [tex]cm^{3}[/tex].

A 3.5-g sample of colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0°c. the calorimeter contains 1.00 kg of water (heat capacity of h2o = 4.184 j/g°c) and the heat capacity of the empty calorimeter is 0.10 kj/°c. how much heat is released per gram of oil shale when it is burned?

Answers

The amount of energy released when one gram of oil is burned is[tex]\boxed{{\text{6}}{\text{.12 kJ}}}[/tex].

Further explanation

Heat capacity is defined as the amount of heat required to change the temperature of a pure substance by one degree. Its S.I. unit is J/K.

Molar heat capacity is defined as the amount of heat required to raise the temperature of one mole of substance by one degree. Specific heat capacity is defined as the amount of heat needed to increase the temperature of 1 gram of a pure substance by one degree.

The expression to calculate amount of heat released or absorbed as follows:

[tex]{\text{q}}={\text{mC}}\Delta{\text{T}}[/tex]                                       …… (1)

Here, q is the amount of heat.

m is the mass of substance.

C is specific heat.

[tex]\Delta{\text{T}}[/tex]is change temperature.

Calorimeter is the device that measures the change in amount of heat absorbed or released during chemical reaction followed by change in temperature. Bomb calorimeter is the device which measure the amount of heat absorbed or released during chemical reaction at constant volume.

The formula to calculate the amount of heat change in calorimeter is as follows:

[tex]{{\text{q}}_{{\text{calorimeter}}}}={{\text{C}}_{{\text{calorimeter}}}}\times\Delta{{\text{T}}_{{\text{calorimeter}}}}[/tex]              …… (2)

The expression to calculate amount of heat absorbed by water is as follows:

[tex]{\text{q}}=\left({{{\text{m}}_{{\text{water}}}}}\right)\left({{{\text{C}}_{{\text{water}}}}}\right)\left({\Delta{\text{T}}}\right)[/tex]                                                …… (1)

Given, [tex]{{\text{C}}_{{\text{water}}}}[/tex] is 4.184 [tex]{\text{J/g}}\cdot^\circ{\text{C}}[/tex].

[tex]{{\text{m}}_{{\text{water}}}}[/tex]is 1 kg.

Change in temperature [tex]\left({\Delta{\text{T}}}\right)[/tex]is [tex]5\;^\circ{\text{C}}[/tex].

Substitute the value of [tex]{{\text{C}}_{{\text{water}}}}[/tex], [tex]{{\text{m}}_{{\text{water}}}}[/tex] and [tex]\Delta{\text{T}}[/tex]in equation (1).

[tex]\begin{aligned}{{\text{q}}_{{\text{water}}}}&=\left({{\text{1}}\;{\text{kg}}}\right)\left({\frac{{1000\;{\text{g}}}}{{{\text{1}}\;{\text{kg}}}}}\right)\left({\frac{{{\text{4}}{\text{.184 J}}}}{{{\text{g}}\cdot ^\circ{\text{C}}}}}\right)\left({5\;^\circ{\text{C}}}\right)\\&{\text{=20920 J}}\\\end{aligned}[/tex]

The amount of heat absorbed by water is 20920 J.

The value of [tex]{{\text{C}}_{{\text{calorimeter}}}}[/tex]is[tex]0.10\;{\text{kJ/}}^\circ{\text{C}}[/tex].

The value of [tex]\Delta{{\text{T}}_{{\text{calorimeter}}}}[/tex]is [tex]{5^\circ}{\text{C}}[/tex].

Substitute these values in equation (2).

[tex]\begin{aligned}{{\text{q}}_{{\text{calorimeter}}}}&=\left({\frac{{0.10\;{\text{kJ}}}}{{^\circ{\text{C}}}}}\right)\times 5\;^\circ{\text{C}}\\&={\text{0}}{\text{.50 kJ}}\\\end{aligned}[/tex]

Amount of heat absorbed by calorimeter is[tex]{\mathbf{0}}{\mathbf{.50 kJ}}[/tex].

The formula to calculate the total amount of heat released to burn 3.5 g of sample is as follows:

[tex]- {{\text{q}}_{{\text{rxn}}}}={{\text{q}}_{{\text{water}}}}+{{\text{q}}_{{\text{calorimeter}}}}[/tex]                   …… (3)

Substitute 20920 J for [tex]{{\text{q}}_{{\text{water}}}}[/tex] and 0.50 J for [tex]{{\text{q}}_{{\text{calorimeter}}}}[/tex] in equation (3)

[tex]\begin{aligned}-{{\text{q}}_{{\text{rxn}}}}&=20920{\text{ J}}+{\text{0}}{\text{.50 kJ}}\left({\frac{{1000\;{\text{J}}}}{{{\text{1}}\;{\text{kJ}}}}}\right)\\&={\text{21420 J}}\\\end{aligned}[/tex]

The total amount of energy released to burn 3.5 g of oil is 21420 J.

The amount of energy released to burn 1 g of oil is calculated as follows:

[tex]\begin{aligned}{\text{Energy released per gram}}&=\frac{{21420{\text{ J}}}}{{3.5{\text{ g}}}}\\&={\text{6120 J}}\\\end{aligned}[/tex]

The conversion factor to convert energy from J to kJ is as follows:

[tex]1{\text{ kJ}}={\text{1000}}\;{\text{J}}[/tex]

The amount of energy released after one gram of oil gets burned is calculated as follows:

[tex]\begin{aligned}{\text{Energy released per gram}}\left({{\text{kJ}}}\right)&=\left({{\text{1 kJ}}}\right)\left({\frac{{{\text{6120 J}}}}{{{\text{1000J}}}}}\right)\\&={\text{6}}{\text{.12 kJ}}\\\end{aligned}[/tex]

Hence, [tex]{\mathbf{6}}{\mathbf{.12 kJ}}[/tex] of energy is released when one gram of oil is burned.

Learn more:

1. Which is most likely a covalent compound https://brainly.com/question/2083444.

2. Calculate the pH of 0.1 m compoundhttps://brainly.com/question/2114744.

Answer details:

Grade: Senior school.

Subject: Chemistry.

Chapter: Thermodynamics

Keywords: Heat capacity, molar heat capacity, specific heat capacity, released, absorbed, calorimeter, bomb calorimeter, water, mass, temperature, degree, 6.12 kj, 6120 j, 0.50 and 2120 J.

The heat released per gram of oil shale is 6120 J/g.

To determine the heat released per gram of oil shale, calculate the heat absorbed by both the water and the calorimeter, then divide the total heat by the mass of the oil shale.

The heat released per gram of oil shale is 6120 J/g.

To determine how much heat is released per gram of oil shale when it is burned, follow these steps:

First, calculate the heat absorbed by the water.

The heat absorbed by the water (q water) can be calculated using the formula:qwater = mass * specific heat * ΔTHere, the mass of the water is 1000 g (since 1 kg = 1000 g), the specific heat of water is 4.184 J/g°C, and ΔT is the change in temperature (5.0°C).

Thus, q water = 1000 g * 4.184 J/g°C * 5.0°C = 20920 J.

Next, calculate the heat absorbed by the bomb calorimeter.

Since the calorimeter has a heat capacity of 0.10 kJ/°C, convert this to J/°C (1 kJ = 1000 J): 0.10 kJ/°C = 100 J/°C.

Then, calculate the heat (q calorimeter) absorbed by the calorimeter:

q calorimeter = heat capacity * ΔT = 100 J/°C * 5.0°C = 500 J.

Add the heat absorbed by the water and the calorimeter to get the total heat released by the combustion of the oil shale:

q total = q water + q calorimeterq total = 20920 J + 500 J = 21420 J.

Finally, determine the heat released per gram of oil shale by dividing the total heat by the mass of the oil shale:

Heat released per gram = q total / mass21420 J / 3.5 g = 6120 J/g.

Therefore, the heat released per gram of oil shale is 6120 J/g.

Correct question is: A 3.5-g sample of colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0°c. the calorimeter contains 1.00 kg of water (heat capacity of H₂O = 4.184 j/g°c) and the heat capacity of the empty calorimeter is 0.10 kj/°c. how much heat is released per gram of oil shale when it is burned?

If neon were frozen into the solid state, would it still be a substance?

Answers

Yes it would still be a substance bc when a glow stick is frozen after cracked it saves the neon chemical for when you need it, in general preserving it.

How many electrons are required to complete the outer energy level of a phosphorus atom?

Answers

Phosphorus has 5 valence electrons
It wants a full octet for its outer shell

8-5 = 3

The number of electrons required to complete the outer energy level of the phosphorus atom has been 3.

Phosphorous has been Group 15 nonmetal. The atomic number of phosphorus has been 15.

The electronic configuration has been assigned to fill the subshells. The electronic configuration of Phosphorus has been:

2, 8, 5

The third shell of atoms has 8 electrons. In the third shell of phosphorus, the number of electrons is 5.

In order to complete the outer energy level, the number of electrons required are:

8 = 5 + electrons required

Electrons required = 8 - 5

Electrons required = 3

The number of electrons required to complete the outer energy level of the phosphorus atom has been 3.

For more information about outer energy level, refer to the link:

https://brainly.com/question/1663092

Assume that you had a mixture of solid na2co3 and nacl. could you use only h2so4 to determine whether na2co3 was present. explain.

Answers

The presence of sodium carbonate can be identified by adding some sulphuric acid. The carbonates will produce carbon dioxide and it can be identified by the brisk effervescence.

What is sodium carbonate?

Sodium carbonate is an inorganic compound formed from the sodium metal and carbonate ions. It is basic in nature due to the presence of electron  rich carbonate anion.

Sodium carbonate will reacts with acids and neutralise them to form salts. It is a weak acid and thus ionization and conductivity of its electrolyte are weak.

Sodium carbonate react with sulphuric acid gives carbon dioxide, water and sodium sulphate. The carbon dioxide formed there will evolves as gas and produce brisk effervescence.

Therefore, by the  brisk effervescence formed in the reaction we can identify the presence of sodium carbonate in the mixture.

To find more about sodium carbonate, refer the link below:

https://brainly.com/question/28901831

#SPJ5

Derek needs a tool that delivers 25.00 mL of a sodium hydroxide solution. Which tool would be best for him to use? A. a beaker B.a pipette C.a graduated cylinder D.an Erlenmeyer flask

Answers

Answer:

B. a pipette

Explanation:

on edg 2021

What happens when an electric field is applied to a very polar molecule?

Answers

The polar molecules aligned due to the non-zero net electric force that creates a torque. Although alignment may not be perfect.

Final answer:

Polar molecules align themselves in an electric field, with their positive ends facing the negative plate and their negative ends facing the positive plate, to maximize attraction between opposite charges.

Explanation:

Response to Polar Molecules in an Electric Field

When an electric field is applied to a very polar molecule, the molecules will align themselves with the field. A polar molecule has a permanent dipole moment due to an uneven distribution of positive and negative charges. In the absence of an electric field, these molecules are randomly oriented, and thus have no net effect. However, in the presence of an electric field, they orient themselves so that the positive end of each molecule is attracted to the negative plate, and the negative end is attracted to the positive plate. This alignment occurs because polar molecules want to maximize the attraction between opposite charges induced by the electric field, effectively creating a net dipole moment density per unit volume.

Polar molecules like HF will align to their dipoles with the field direction, demonstrating this behavior. The same effect can be observed with nonpolar molecules; while they do not have a permanent dipole moment, they can acquire an induced electric-dipole moment when subjected to an electric field, which also aligns with the field direction.

"Energy cannot be created or destroyed" is called the law of


renewability of energy


conservation of energy


conversion of energy


saving of energy

Answers

renew ability of energy is your answer

Select all that apply to organic compounds. Organic compounds are only found in living things. Organic compounds can be synthesized in a laboratory setting. Organic compounds contain carbon. CO2 is an organic compound. There are hundreds of thousands of organic compounds.

Answers

Organic compounds are only found in living things, organic compounds contain carbon, CO2 is an organic compound,

Answer:

Correct options:

Organic compounds can be synthesized in a laboratory setting.

There are hundreds of thousands of organic compounds.

Explanation:

1) Organic compounds are only found in living things: False

Organic compounds are mainly carbon based. Although organic compounds are derived from living things like plants and animals, non-living things like sedimentary rocks are also rich in carbon.

2) Organic compounds can be synthesized in a laboratory setting: True

There are four major categories of organic compounds: carbohydrates, proteins, lipids and nucleic acids all of which can be synthesized in a laboratory.

3) Organic compounds contain carbon: False

Organic compounds are identified by the presence of both carbon and hydrogen (and sometimes other elements like O, N, S).

4)CO2 is an organic compound: False

There are no H atoms, hence CO2 is not organic.

5) There are hundreds of thousands of organic compounds: True

A molecule has four unshared electrons on the central atom and four chlorine atoms bonded to the central atom. What is its molecular shape and its hybridization?

Answers

Hybridization is the chemist's attempt to explain the observed molecular shape by constructing HAOs with the appropriate inter orbital angels. A molecule adopts its most stable shape all by itself ,then the chemist calculated what HAOs correspond to the shape.There is a One-to One correspondence between shape and hybridization.

Describe how you would prepare a supersaturated solution of lithium sulfate

Answers

Most sulfates are insoluble except for Group 1A elements. Hence, lithium sulfate is soluble in water. In order to make a supersaturated solution, add solid lithium sulfate in any amount of water. Then, stir. Don't stop adding until some of it will be left undissolved. Once particles settle and doesn't dissolve no matter how much you stir, heat the solution while adding more of the lithium sulfate. When it dissolves all of the solute, you have now created a supersaturated solution.

As temperature of this substance rises from 20°C to 50°C, the substance _______ heat and its kinetic energy _________ .
A) absorbs; increases
B) releases; increases
C) absorbs; remains constant
D) remains constant; increases

Answers

Hello!

I think the answer to this question would be A) Absorbs; Increases.

I hope this is correct, and it helps you out! c:

Answer: Option (A) is the correct answer.

Explanation:

When a substance absorbs heat energy then there will occur an increase in the temperature of the substance.

And, as there is occurring an increase in the temperature of substance. Kinetic energy is related to temperature as follows.

                   [tex]K.E \propto \frac{3}{2}kT[/tex]

Hence, with increase in temperature there will also be increase in kinetic energy of the molecules of a substance.

Thus, we can conclude that as temperature of this substance rises from [tex]20^{o}C[/tex] to [tex]50^{o}C[/tex], the substance absorbs heat and its kinetic energy increases.

. Using the following equation: F = ma Solve for m (1 point)

Answers

To solve for m in the equation F = ma, you must divide both side of the equation by a. This will make the equation look like F/a = ma/a. Since m is being multiplied by a, dividing it will cancel out. Now making the final equation look like F/a=m and/or m=F/a.

In an experiment, a student isolated 6.356 g of pure copper from an initial sample of 9.902 g of copper chloride. determine the empirical formula of this copper chloride compound. show your work.

Answers

The mass of the copper chloride is 9.902 g of which 6.356 is pure Copper, that makes 3.546 g Chloride. To determine the empirical formula you need to know that 1 mol of Cu is 63.54 g and 1 mol Cl is 35.45 g. 6.536/63.54= about .1 mol 3.546/35.45 is also about .1 mol so the empirical formula for this copper chloride would be CuCl
Other Questions
Round 35.78 to the nearest whole second Sherilyn operates a store called the gift garden. her store sells pottery, candles, crafts, and other knickknacks that make good gifts for family and friends. the gift garden is a _____. How did immigrants deal with the challenges they faced? When writing about a work of art which question would contribute most to your evaluation? What is the difference between -5 squared and -5 parenthesis squared? Mrs Kipling ordered flowers for centerpieces.She ordered 168 flowers.She needs to put 15 flowers in a vase for 14 tables.Does Mrs.Kipling have enough flowers for 14 tables? Explain why or why not. Which sentence tells about a goal that has already been achieved? Janelle wants to be the team captain. Janelle has become the team captain. On and off the field, Janelle behaves like a team captain.With her skills, Janelle is sure to be the team captain. Why is a foaming antacid tablet fizzing in water a chemical change? What is the smoothness of the hands flow while playing an instrument called?posturetempofacilityflexibility A 325 ml sample of gas is initially at a pressure of 721 torr and a temperature of 32c. if this gas is compressed to a volume of 286 ml and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three significant figures in c)? Simplify| -3.9 | + | 3.9 |A. -7.8B. 0C. 7.8D. 8 The primary regions of origin of refugees applying to come to the US in 2007 were __________. A. Africa and Asia B. Africa and the Middle East C. Asia and the Middle East D. Africa and Eastern Europe What was the chief reason for adolf hitler's anti semitism? What position in government was jackson elected to in 1828? There are 105 members of the high school band. Of these members, 1/5 play percussion instruments. How many members play percussion? Write two numbers so thatThe first number is less than the second number, andThe absolute value of the first number is greater than the absolute value of the second number What does robinson cirusoe stuff in his pockets the first time he swims to shipwreck The electoral system represents geographical constituencies, but the ________ represents economic, professional, ideological, religious, racial, gender, and issue constituencies. In quadrilateral ABDC, AB CD. Which additional piece of information is needed to determine that ABDC is a parallelogram? AB CD AC BD AB BD CD BD solve the equation 5n + 5 = 45 Steam Workshop Downloader