Answers
Considering the attached image;
Answer;
- Lithium (Li) and Flourine (F)
Explanation;
-(Li) Lithium and (F) Fluorine would create a binary ionic compound which would be lithium fluoride which would be (LiF). Lithium is an alkali metal in group 1 in the periodic table , while flourine is a halogen in group 7. Lithium reacts by loosing an electron while flourine reacts by gaining one electron. Therefore, they reacts forming LiF which is an ionic compound.
-They would create an ionic compound because lithium is a metal and fluorine is a nonmetal. Metal + Nonmetal = ionic compound.
Related Questions
If the length of one side of a square is 12.0 m, what is the perimeter of the square? Express the perimeter with the appropriate units
Answers
The perimeter of a square whose length is 12.0 m is 48 cm.
Further Explanation Area Area is a measure of how much space is occupied by a given shape.Area of a substance is determined by the type of shape in question.For example;
Area of a rectangle is given by; Length multiplied by widthArea of a triangle = 1/2 x base x heightArea of a circle = πr². where r is the radius of a circle,Area of a square = S², Where s is the side of the square.etc.Perimeter Perimeter is defined as the distance along a two dimension shape. Perimeter of different shapes is given by different formulasFor example;
The perimeter of a rectangle = 2(length+width)The perimeter of a triangle = a+b+c; where a, b and c are the sides of the triangle. etc.In this case;
We are given one side of a square as 12.0 cm
But Perimeter of a square is given by; 4 × s
Thus; Perimeter = 4 × 12 units
= 48 units
Keywords; Perimeter, Area
Learn more about;Perimeter of a square example: brainly.com/question/3619302Area of a square: https://brainly.com/question/1322653Level: Middle school
Subject; Mathematics
Topic: Area and Perimeter
Final answer:
The perimeter of the square with a side length of 12.0 m is 48.0 m.
Explanation:
The perimeter of a square is the sum of all its sides.
Since all the sides of a square are equal, we can find the perimeter by multiplying the length of one side by 4.
For the given square with a side length of 12.0 m, the perimeter would be:
Perimeter = 12.0 m x 4
= 48.0 m
Which equation best expresses the relationship between pressure and volume for gas?
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PV = (0.5 atm)(1000 mL) = 500 atm*mL
PV = (1 atm)(500 mL) = 500 atm*mL
PV = (2 atm)(250 mL) = 500 atm*mL
Thus, the answer is choice (2).
The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is insoluble in water and has a measurable vapor pressure at 100 °c even though it has a much higher boiling point than water. use data from the table to calculate the volume of eugenol in 30 ml of distillate.
Answers
Molar Mass of Eugenol: 164 g/mol
Boiling point of water: 100 degrees C
Boiling point of eugenol: 254 degrees C
Vapor pressure of Water at 100 degrees C: 760 mmHG
Vapor pressure of Eugenol at 100 degrees C: 4.0 mmHG
HINT: Steam distillation is particularly useful for purifying materials that decompose before reaching their normal boiling point. Steam causes high-boiling components that are immiscible in water to boil at significantly lower temperatures than their normal boiling point. Because the mole fraction of the components only depends on the vapor pressure of the components:
I have attempted this problem numerous times here is what i am doing what am i doing wrong?
Xorg = 4.0/4.0+760 = 0.0053
1-0.0053=0.9947 = XH20
mH2O = 0.9947 * 18 = 17.9046
morg = 0.0053 * 164 = 0.8692
m%org = [0.8692/ (0.8692 + 17.9046)] * 100 = 4.62%
Rounded to 5%
There are three common functional groups in organic chemistry that are readily ionized by adjusting the ph of the aqueous solution during an extraction. name and write the chemical structure of these three functional groups and show each
Answers
Their chemical strictures are as follows:
Carboxylic acid: RCOOH
Amines: RNH2
Phenols: C6H6O.
If acetic acid is the only acid that vinegar contains (ka=1.8×10−5), calculate the concentration of acetic acid in the vinegar. express your answer using two significant figures.
Answers
[tex]CH_{3}COOH \ \textless \ ---\ \textgreater \ H^{+} + CH_{3}COO^{-} [/tex]
In this case pH value of the solution is necessary to calculate the concentration but it's not given here so pH = 2.88 (looked it up)
pH = 2.88 ==> [tex][H^{+}][/tex] = [tex]10^{-2.88}[/tex] = 0.001 [tex]moldm^{-3}[/tex]
The change in Concentration Δ [tex][CH_{3}COOH][/tex]= 0.001 [tex]moldm^{-3}[/tex]
CH3COOH H+ CH3COOH
Initial [tex]moldm^{-3}[/tex] [tex]x[/tex] 0 0
Change [tex]moldm^{-3}[/tex] -0.001 +0.001 +0.001
Equilibrium [tex]moldm^{-3}[/tex] [tex]x[/tex]- 0.001 0.001 0.001
Since the [tex] k_{a} [/tex] value is so small, the assumption
[tex][CH_{3}COOH]_{initial} = [CH_{3}COOH]_{equilibrium}[/tex] can be made.
[tex] k_{a} = [tex]= 1.8*10^{-5} = \frac{[H^{+}][CH_{3}COO^{-}]}{[CH_{3}COOH]} = \frac{0.001^{2}}{x} [/tex]
Solve for x to get the required concentration.
note: 1.)Since you need the answer in 2SF don&t round up values in the middle of the calculation like I've done here.
2.) The ICE (Initial, Change, Equilibrium) table may come in handy if you are new to problems of this kind
Hope this helps!
What role does the oxidation agent play in a redox reaction
Answers
In the shapes and fluid forces lab, you dropped different shapes in the fluid. what was the dependent variable that you observed and recorded
Answers
Answer is: Settling time.
Settling is the process by which substances (in this example with different shape) settle to the bottom of the fluid.
The two main variables in an experiment are the independent and dependent variable.
Dependent variable is the variable being tested and measured in a scientific experiment.
Dependent variables depend on the values of independent variables. The dependent variables represent the output or outcome whose variation is being studied.
What is the mass of 3.00 moles of magnesium chloride, MgCl2? Express your answer with the appropriate units.
Answers
24.305+ 2*35.453= 95.211 gram/mol.
Then, the mass of 3 mol of MgCl would be:
3 mol * 95.211 gram/mol= 285.633 gram
The mass of 3.00 moles of magnesium chloride (MgCl₂) is 95.211 gram/mol.
This is determined by multiplying the number of moles by the molar mass of MgCl₂, which is 95.21 g/mol.
To find the mass of 3.00 moles of magnesium chloride (MgCl₂), we need to use the molar mass of MgCl₂ as a conversion factor. The molar mass of MgCl₂ is the sum of the atomic masses of magnesium (Mg) and chlorine (Cl).Steps for Problem Solving:
Determine the atomic masses from the periodic table: Mg = 24.31 g/mol, Cl = 35.45 g/mol.Calculate the molar mass of MgCl₂: Molar mass of MgCl₂ = 24.31 g/mol + 2(35.45 g/mol) = 95.21 g/mol.Use the molar mass to convert moles to grams: Mass (g) = Number of moles × Molar mass (g/mol).Substitute the known values: Mass (MgCl₂) = 3.00 moles × 95.21 g/mol = 285.63 g.Therefore, the mass of 3.00 moles of magnesium chloride (MgCl₂) is 24.305+ 2*35.453= 95.211 gram/mol.
Correct question is: What is the mass of 3.00 moles of magnesium chloride, MgCl₂? Express your answer with the appropriate units.
What is the final pressure (expressed in atm) of a 3.05 l system initially at 724 mm hg and 298 k, that is compressed to a final volume of 2.60 l at 273 k?
Answers
(P1V1) / T1 = (P2V2) / T2 where:
P1 = 724 mm hg
V1 = 3.05 L
T1 = 298 K
P2 is the unknown we want to find
V2 = 2.6 L
T2 = 173 K
Substitute with the givens to calculate P2 as follows:
(724*3.05) / 298 = (P2*2.6) / 273
P2 = 778.057047 mm Hg = 1.023759 atm
[tex]\boxed{1.0237596\;{\text{atm}}}[/tex] is the final pressure of a 3.05 L system initially at 724 mm Hg ad 298 K that is compressed to a final volume of 2.60 L at 273 K.
Further Explanation:
An ideal gas is a hypothetical gas that is composed of a large number of randomly moving particles that are supposed to have perfectly elastic collisions among themselves. It is just a theoretical concept and practically no such gas exists. But gases tend to behave almost ideally at a higher temperature and lower pressure.
Ideal gas law is the equation of state for any hypothetical gas. The expression for the ideal gas equation is as follows:
[tex]\boxed{{\mathbf{PV = nRT}}}[/tex] ...... (1)
Here,
P is the pressure of the gas.
V is the volume of the gas.
T is the absolute temperature of the gas.
n is the number of moles of gas.
R is the universal gas constant.
Rearranging equation (1), we get:
[tex]\frac{{PV}}{T} = nR[/tex] ...... (2)
For a particular gas, the number of moles (n) and the universal as constant (R) both are constants.
If a specific gas with [tex]{P_1}[/tex], [tex]{V_1}[/tex] and [tex]{T_1}[/tex] is subjected to any change and the final parameters being [tex]{P_2}[/tex], [tex]{V_2}[/tex] and [tex]{T_2}[/tex]. So equation (2) becomes,
[tex]\frac{{{P_1}{V_1}}}{{{T_1}}} = \frac{{{P_2}{V_2}}}{{{T_2}}}[/tex] ...... (3)
Here,
[tex]{P_1}[/tex] is the initial pressure of the gas.
[tex]{V_1}[/tex] is the initial volume of the gas.
[tex]{T_1}[/tex] is the initial temperature of the gas.
[tex]{P_2}[/tex] is the final pressure of the gas.
[tex]{V_2}[/tex] is the final volume of the gas.
[tex]{T_2}[/tex] is the final temperature of the gas.
Calculation of the final pressure [tex]\left( {{{\mathbf{P}}_{\mathbf{2}}}} \right)[/tex] of the gas
Rearranging equation (3), we get:
[tex]{P_2} = \frac{{{P_1}{V_1}{T_2}}}{{{T_1}{V_2}}}[/tex] ...... (4)
We have [tex]{P_1} = 724\;{\text{mm Hg}}[/tex]
[tex]{V_1} = 3.05\;{\text{L}}[/tex]
[tex]{T_1} = 298\;{\text{K}}[/tex]
[tex]{V_2} = {\text{2}}{\text{.60 L}}[/tex]
[tex]{T_2} = {\text{273 K}}[/tex]
Substitute these values in equation (4).
[tex]\begin{gathered}{P_2}=\frac{{\left( {724\;{\text{mm Hg}}} \right)\left( {3.05\;{\text{L}}} \right)\left( {273\;{\text{K}}} \right)}}{{\left( {298\,{\text{K}}} \right)\left( {2.60\;{\text{L}}} \right)}} \\= 778.05705\;{\text{mm Hg}} \\ \end{gathered}[/tex]
Conversion Factor:
[tex]1\;{\text{mm Hg}} = {\text{0}}{\text{.00131579 atm}}[/tex]
So the value of [tex]{P_2}[/tex] (in atm) is calculated as follows:
[tex]\begin{gathered}{P_2}=\left( {778.05707\;{\text{mm Hg}}}\right)\left( {\frac{{{\text{0}}{\text{.00131579 atm}}}}{{1\;{\text{mm Hg}}}}} \right) \\= 1.023759\;{\text{atm}}\\\end{gathered}[/tex]
So the final pressure of the gas is 1.023759 atm.
Learn more:
1. Rate of chemical reaction: https://brainly.com/question/1569924
2. Chemical bonds in NaCl: https://brainly.com/question/5008811
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Ideal gas equation
Keywords: ideal gas, pressure, volume, absolute temperature, equation of state, hypothetical, universal gas constant, moles of gas, initial, final, P, V, T, P1, P2, V1, V2, T1, T2.
If 50% of radioactive element remains after 4000 years what what is the half life
Answers
Which of the following represents a compound?
A) H
B) H-3
C)H2O
D) O-16
Answers
To be considered as a compound, it need to contain two on more elements.
From the option above, only H2O contains 2 elements, H is for Hydrogen and O is for oxygen. This compound formed a substance that we most commonly know as water.
How many grams of hydrogen in 4.50 mol H2SO4
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If 150 g of phenacetin were dissolved in 100 ml of water, how much ether would be required to extract 90% of phenacetin in a single extraction?
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A concentrated solution in water will always contain a strong or weak electrolyte true or false
Answers
How many liters of water are required to dissolve 1.00 g of barium sulfate?
Answers
To dissolve 1.00 g of barium sulfate, we would need 1 L of water.
Explanation:In order to calculate the amount of water needed to dissolve 1.00 g of barium sulfate, we need to use the molar mass of barium sulfate and the concept of molarity.
The molar mass of barium sulfate (BaSO4) is 233.43 g/mol. We can use this to convert the mass of barium sulfate to moles.
Once we know the number of moles of barium sulfate, we can use the molar ratio between barium sulfate and water to calculate the volume of water needed. The balanced equation for the dissolution of barium sulfate in water is:
BaSO4 (s) + H2O (l) → Ba2+ (aq) + SO42- (aq)
Based on this equation, 1 mole of barium sulfate dissolves to give 1 mole of water. Therefore, to dissolve 1.00 g of barium sulfate, we would need 1 L of water.
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Is the tetrapeptide ala-glu-gly-lys a good buffer at ph 7.0? will it move in an electric field at ph 7.0?
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If pH is 7, means it is neutral. so it will not move in an electric field
Which of the following is the correct formula for barium (II) sulfate?
Answers
At which stage does a gas form in a gas formation reaction?
the reactants stage
the product stage
the liquid stage
the solid stage
Answers
Answer: b
Explanation:
4.05 kg + 567.95 g + 100.1 g add the correct value using the correct sig figs and or least precise degree of precision. When i did least degree of precision i got 4718.1g, do we need to convert the kg unit to grams before getting the least degree of precision? since i used 100.1 as dop and if i had converted first the dop of 4.05 or now 4050g the dop is now only to the tens place compared to being in the tenths place
Answers
To find the least degree of precision we swould model it after the kg amount or 4.05 kg or two decimal places. So that would add 0.56795 kg (0.57 kg) and then 0.1001 kg (0.1 kg) so that our answer would be 4.72 kg.
In the other hand, the greatest degree of precision would be to conver 4.05 kg to 4050 g so that 4050g + 567.95 + 100.1 g= 4718.05 grams or 4718 g.
Find the current through the 30.0 ω resistor.
Answers
Without the total voltage or detailed circuit configuration, it's not possible to determine the current through the 30.0 ω resistor. An example using Ohm's law has been provided for a hypothetical scenario.
Explanation:To find the current through the 30.0 ω resistor, we would need to apply Ohm's law, which states that I = V/R, where I is the current, V is the voltage, and R is the resistance. However, the provided information is insufficient to determine the current, as we are not given the total voltage across the resistor or the configuration of the circuit (whether it is series, parallel, or a combination).
If the 30.0 ω resistor were the only resistance in the circuit and the voltage across it was provided, we could directly use Ohm's law to calculate the current. For example, if the voltage was 10 V, the current would simply be I = 10V / 30.0ω = 0.333 A.
Without additional information, such as the configuration of the circuit and the total voltage, we cannot accurately calculate the current. The problem might be missing details or might require knowledge about the rest of the circuit to solve.
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moles of hydrogen in 9.15×10−2 mol C4H10
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To know the number of moles of hydrogen in 9.15x10^-2, we will just do a cross multiplication as follows:
number of moles of hydrogen = (9.15 x 10^-2 x 10) / 1 = 0.915 moles
Suggest a reason for why the phosphorus-containing side product from the horner-emmons wittig reaction is more water-soluble than the triphenylphosphine oxide side product obtained from the standard wittig reaction.
Answers
One radioactive isotope of calcium has an atomic mass number of 47. How many neutrons are in the calcium-47 nucleus?
Answers
Thus, by looking at the periodic table the prton number is 20.
no. of neutrons in the isotope of Ca=47-20
Therefore the number of neutrons in calcium-47 is 27 neutrons.
Answer: The number of neutrons in the given isotope are 27.
Explanation:
Atomic number is defined as the number of electrons or number of protons that are present in a neutral atom. It is represented as Z.
Z = Atomic number = Number of electrons = Number of protons
Mass number is defined as the sum of number of protons and number of neutrons present in an atom. It is represented as A.
A = Mass number = Number of protons + Number of neutrons
Number of neutrons = Mass number - Atomic number
We are given an isotope having representation: [tex]_{20}^{47}\textrm{Ca}[/tex]
Atomic number or number of protons = 20
Mass number = 47
So, number of neutrons = 47 - 20 = 27
Hence, the number of neutrons in the given isotope are 27.
The oceanic crust is made primarily from this type of rock.
Answers
Answer:
Igneous rock basalt.
Explanation:
The ocean crust is made mostly of igneous rock basalt, which comes from lava and the movement of tectonic plates.
what location on earth experiences the least change in the number of daylight hours throughout the year?
Answers
what is the definition of tributary
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A tributary is a smaller stream or river that flows into a larger one, contributing to its volume and influencing its navigability, ecosystem, and flooding potential.
Explanation:The definition of a tributary is a stream or river that flows into a larger stream, river, or lake. These smaller watercourses contribute to the flow of the larger one, which is often referred to as the mainstem or parent river. Tributaries do not flow directly into the sea. They provide additional water volume to their parent river, which can then affect the river's ability to navigate, its ecosystem, and potential for flooding. For example, the Missouri River is a tributary of the Mississippi River because it flows into it.
Why does ferrocene undergo the acylation reaction more readily than benzene?
Answers
How many grams of CO2 are used when 7.0 g of O2 are produced?
Answers
The question cannot be answered as posed because a specific chemical reaction and balanced equation are needed to relate the masses of O2 and CO2.
Explanation:To answer how many grams of CO2 are used when 7.0 g of O2 are produced, we assume the process is a typical combustion or respiration reaction, where CO2 is generated from O2, or vice versa. The balanced chemical equation for the combustion of carbon would typically be C + O2 → CO2. However, since we are given the mass of O2 produced, and not the mass of a carbon-containing fuel that reacts, we cannot proceed to calculate the mass of CO2 without additional information on the specific reaction involved, including the stoichiometry that defines the mass relationship between O2 and CO2. Therefore, we must have a balanced equation or a known reaction to relate the masses of O2 and CO2 produced in order to provide a specific answer.
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9.62 grams of [tex]\( \text{CO}_2 \)[/tex] are used when 7.0 grams of [tex]\( \text{O}_2 \)[/tex] are produced.
One common reaction where [tex]\( \text{O}_2 \)[/tex] is produced and [tex]\( \text{CO}_2 \)[/tex] is consumed is photosynthesis:
[tex]\[ 6 \text{CO}_2 + 6 \text{H}_2\text{O} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2 \][/tex]
From this balanced equation, we see that 6 moles of [tex]\( \text{CO}_2 \)[/tex] produce 6 moles of [tex]\( \text{O}_2 \)[/tex]. This means that 1 mole of [tex]\( \text{CO}_2 \)[/tex] produces 1 mole of[tex]\( \text{O}_2 \).[/tex]
Step-by-Step Solution:
1. Determine the molar mass of [tex]\( \text{O}_2 \)[/tex]:
[tex]\[ \text{Molar mass of O}_2 = 2 \times 16.00 \text{ g/mol} = 32.00 \text{ g/mol} \][/tex]
2. Calculate the moles of \( \text{O}_2 \) produced:
[tex]\[ \text{Moles of O}_2 = \frac{7.0 \text{ g}}{32.00 \text{ g/mol}} = 0.21875 \text{ moles} \][/tex]
3. Use the stoichiometry from the balanced equation:
From the balanced equation, the mole ratio between[tex]\( \text{CO}_2 \) and \( \text{O}_2 \) is 1:1.[/tex]
Therefore, the moles of [tex]\( \text{CO}_2 \)[/tex] used is the same as the moles of [tex]\( \text{O}_2 \)[/tex]produced:
[tex]\[ \text{Moles of CO}_2 = 0.21875 \text{ moles} \][/tex]
4. Determine the molar mass of [tex]\( \text{CO}_2 \)[/tex] :
[tex]\[ \text{Molar mass of CO}_2 = 12.01 \text{ g/mol} + 2 \times 16.00 \text{ g/mol} = 44.01 \text{ g/mol} \][/tex]
5. Calculate the grams of \( \text{CO}_2 \) used:
[tex]\[ \text{Grams of CO}_2 = \text{Moles of CO}_2 \times \text{Molar mass of CO}_2 \][/tex]
[tex]\[ \text{Grams of CO}_2 = 0.21875 \text{ moles} \times 44.01 \text{ g/mol} = 9.62 \text{ g} \][/tex]
If a feather and an iron bar is released from a same height in a room without any air resistance, which one(s) will impact the ground first.
A) neither one, because without air resistance gravity is absent
B) iron bar
C) both
D) feather
Answers
Both a feather and an iron bar will impact the ground at the same time if released from the same height in a room without air resistance, demonstrating that gravity causes all objects to fall with the same acceleration, disregarding their mass.
Explanation:If a feather and an iron bar are released from the same height in a room without any air resistance, both the feather and the iron bar will impact the ground at the same time. The correct answer is C) both. This outcome occurs because in the absence of air resistance, all objects fall at the same rate due to gravity. This phenomenon was famously demonstrated on the Moon by astronaut David R. Scott in 1971, where, despite the Moon's lower gravitational acceleration of 1.67 m/s² compared to Earth's 9.81 m/s², both a hammer and a feather were shown to fall at the same rate when dropped from the same height. This validates that acceleration due to gravity is constant and does not depend on the mass of the objects involved.
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For each reaction, identify the precipitate or lack thereof bacl2 naoh