Both renewable and nonrenewable resources are used within our society. How do the uses of nonrenewable resources compare to the uses of renewable resources?
a.
Nonrenewable resources have more applications than renewable resources.
b.
Certain types of renewable energy can be used for as many applications as certain types of nonrenewable resources.
c.
There are more sources of nonrenewable energy than renewable energy.
d.
Nonrenewable resources have fewer applications than renewable resources.

Answer:

Volume will be 2L

Explanation:

The problem can be solved taking into account Boyle-Mariotte Law for ideal gases

. It states:

At constant temperature, the volume of a fixed mass of gas is inversely proportional to the pressure it exerts.

[tex]P_{1} *V_{1} =P_{2} *V_{2}\\[/tex]

Being P1 and V1 the values of Pressure an temperature in the gas initial state. And P2, V2, pressure and temperature of the gas in the final state.

The given values are:

So, we replace given values in the formula isolating V2:

[tex]\frac{P_{1} *V_{1}}{P_{2} } =V_{2}\\\\\frac{50kPa *5L}{125kPa}=V_{2}\\\\V_{2}=2L[/tex]

So, the volume when pressure is increased to 125 kPa will be 2L.

Answer:

1) Mass

2) Newton's First Law

3) Impulse

4) Momentum

5) Velocity

6) Newton's second law

Explanation:

1) Inertia is the tendency of matter to maintain constant velocity. Therefore, it is mass which causes an object to have inertia

2) As per Newtons first law of motion or law of inertia, a body of mass 'm' will continue to be in a state of rest or uniform motion unless acted upon by an external force. This is also a special case of Galileo's Law of Inertia.

3) Impulse is the product of force and time

4) Momentum is the product of velocity and mass

5) Velocity is the ratio of momentum by mass

6) As per Newton's second law of motion, the acceleration (a) of a body of mass (m) is directly proportional to the force (F) acting on it

[tex]F = ma[/tex]

Dissolution of salts in water is represented by a chemical reaction in which the salt splits into its individual ions. The process is spontaneous and often exothermic. Factors like the solvent characteristics, temperature, pressure, and specific interactions affect solubility.

When a salt such as NaCl is dissolved in water, it splits up into its individual ions, which become solvated or surrounded by water molecules. This process can be described by the chemical equation: NaCl(s) → Na+(aq) + Cl-(aq). Also, for another salt like Fe(NO3)3, the dissolution process can be represented as: Fe(NO3)3(s) →→ Fe³+(aq) + 3NO3¯(aq). The s, aq annotations represent the states of matter, solid and aqueous, respectively.

The dissolution of these salts in water is a physical process that increases the disorder of the system, hence a spontaneous process, often exothermic. The solubility of salts is greatly influenced by the nature of the solvent, temperature, and pressure. SIP (Solubility, Ionization, and Precipitation) principles along with factors like dipole-dipole attractions, hydrogen bonds, ion-dipole, and dispersion forces play an important role in solubility.

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The reaction for the dissolution of salt in water is NaCl (s) + H2O (l) → Na+(aq) + Cl-(aq)

The reaction for the dissolution of salt in water can be represented by the following equation:

NaCl (s) + H2O (l) → Na+(aq) + Cl-(aq)

In this reaction, the solid salt (NaCl) dissociates into its constituent ions (Na+ and Cl-) when it is dissolved in water.

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Rutherford proposed the nuclear model of atom where electrons are revolving the nucleus. However he was unable to determine the energy levels and momentum of  electrons.

There are various atomic models regarding the structure of atoms and its electronic properties. The predictions starts from Dalton's model of indivisibility of atoms. Later modified by many scientists Thomson, Rutherford, Bohr etc.

Rutherford conducted the gold foil experiment and he reached the result that the atoms are made of a nucleus and electrons where the nucleus contains positively charged particles protons and the negatively charged particles electrons are revolving around the nucleus.

However, he failed to determine the energy and momentum of electrons as well the possibility of finding an electron inside an orbital. The circular paths or orbits through which the electrons are revolving have are fixed energy levels.

This fixed energy levels and momentum of electrons are later determined by Bohr's atomic model. Bohr's model helped to find the radius of atom and energy of orbitals with the aid of quantum mechanics.

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Answer : The balanced chemical reaction is,

[tex]2Cr(s)+3NiSO_{4}(aq)\rightarrow Cr_{2}(SO_{4})_{3}(aq)+3Ni(s)[/tex]

Explanation :

[tex]Cr(s)+NiSO_{4}(aq)\rightarrow[/tex]

The balanced chemical reaction is,

[tex]2Cr(s)+3NiSO_{4}(aq)\rightarrow Cr_{2}(SO_{4})_{3}(aq)+3Ni(s)[/tex]

This is a single step displacement reaction. From the reactivity series of the metals, the reactivity of the chromium metal is higher than the reactivity of the nickel metal. Therefore, the chromium metal easily displaces the nickel metal from the solution of nickel(II) sulfate. The reactivity series image attached below.

C). (The way Prokaryotes reproduce)

I hope this helps :D

The ion with a charge of 2+ and 27 electrons is a copper ion (Cu²+), which has lost two electrons to acquire the positive charge.

The ion the question is asking about is an ion that has lost two electrons and therefore has a charge of 2+. The ion has 27 electrons, but it would normally have 29 electrons (27 + 2). This means the ion is a cation from which two electrons have been removed. To find which element it is, we should look for an element in the periodic table with the atomic number of 29. That element is copper (Cu). Therefore, the ion is a copper ion, specifically Cu²+, as it has lost two electrons and carries a positive charge.

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Answer: correct answer is A

Explanation: i took the test

Insoluble salts can be used to soften water by removing calcium, magnesium, and other metal cations that cause hardness. Water softeners use complex sodium salts to form insoluble salts that precipitate onto resin surfaces. This process reduces dissolved minerals and extends the lifespan of plumbing.

An insoluble salt can be used to soften water because when water flows over ion-exchange resins, insoluble salts precipitate onto the resin surface.

Commercial water softeners use a complexing agent that contains complex sodium salts. When water passes over the resin, sodium ions are dissolved, and insoluble salts are formed. These insoluble salts help remove calcium, magnesium, and other metal cations which cause water hardness.

This process reduces the presence of dissolved minerals in the water, resulting in softened water that requires less soap for cleaning and reduces scale build-up in pipes and fittings.

Answer: Empirical formula will be [tex]C_6H_{11}OBr[/tex]

Explanation: Assuming that the total mass of the given tear gas = 100g

Mass of each element will be equal to the percentages of each element given

Mass of Carbon = 40.25g

Mass of Hydrogen = 6.19g

Mass of Oxygen = 8.94g

Mass of Bromine = 44.62g

Now, converting mass of each element into their moles using the formula

[tex]Moles=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]

[tex]\text{Moles of carbon}=\frac{40.25g}{12g}=3.354moles[/tex]     (Molar Mass of C = 12g)

[tex]\text{Moles of hydrogen}=\frac{6.19g}{1g}=6.19moles[/tex]    (Molar Mass of H = 1g)

[tex]\text{Moles of oxygen}=\frac{8.94g}{16g}=0.558moles[/tex]    (Molar Mass of O = 16g)

[tex]\text{Moles of Bromine}=\frac{44.62g}{80g}=0.558moles[/tex]    (Molar Mass of Br = 80g)

Dividing moles of each element with the smallest number of moles calculated, we get the mole ratio of each element.

[tex]\text{Mole Ratio of carbon}=\frac{3.354moles}{0.558moles}=6.01\approx 6[/tex]

[tex]\text{Mole Ratio of hydrogen}=\frac{6.19moles}{0.558moles}=11.09\approx 11[/tex]

[tex]\text{Mole Ratio of oxygen}=\frac{0.558moles}{0.558moles}=1[/tex]

[tex]\text{Mole Ratio of bromine}=\frac{0.558moles}{0.558moles}=1[/tex]

The mole ratio of each element is written in the subscript of each element in the empirical formula.

Empirical Formula : [tex]C_6H_{11}OBr[/tex]

Empirical formula will be [tex]C_6H_{11}OBr[/tex]

Let us assume that the total mass of the given tear gas = 100g

Mass of each element will be equal to the percentages of each element given.

Mass of Carbon = 40.25g

Mass of Hydrogen = 6.19g

Mass of Oxygen = 8.94g

Mass of Bromine = 44.62g

Moles of Carbon= [tex]\frac{40.25g}{12g/mol}=3.354moles[/tex]

Moles of Hydrogen= [tex]\frac{6.19g}{1g/mol}=6.19moles[/tex]

Moles of Oxygen= [tex]\frac{8.94g}{16g/mol}=0.588moles[/tex]

Moles of Bromine= [tex]\frac{44.62g}{80g/mol}=0.558moles[/tex]

Mole- ratio of Carbon = [tex]\frac{3.354}{0.058}=6[/tex]

Mole- ratio of Hydrogen = [tex]\frac{6.19}{0.558}=11[/tex]

Mole- ratio of Oxygen = [tex]\frac{0.588}{0.588}=1[/tex]

Mole- ratio of Bromine = [tex]\frac{0.588}{0.588}=1[/tex]

The mole ratio of each element is written in the subscript of each element in the empirical formula.

Thus, Empirical Formula : [tex]C_6H_{11}OBr[/tex]

Find more information about Empirical formula here:

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Answer:

False.

Explanation:

The liquids have properties in between solids and gas.

They have intermediate intermolecular interactions and thermal energy.

unlike solids they can occupy the particles do move here and there however the kinetic energy is less than that of gas.

Similar to gas they can take the shape of the container.

Also, they can move away from each other to fill the container upto their maximum volume.

Gases can fill the container upto the volume of container.

This is because deductive reasoning is insight gained from an established principle or laws.

Answer:

sublimation and melting

Explanation:

Answer: 34 quaters have the same value as 85 dimes.

Explanation:

We are given a conversion factor:

10 dimes = 4 quaters

We need to find out the value of 85 dimes. For that we use unitary method.

If 10 dimes have the same value as 4 quaters.

So, 85 dimes will have the same value as [tex]\frac{4}{10}\times 85=34[/tex] quaters.

Hence, 34 quaters have the same value as 85 dimes.

Answer:

Wedging

Explanation:

Ice wedging is a form of mechanical weathering or physical weathering in which cracks in rock or other surfaces become filled with water,it now freezes and expands, causing the cracks in the rock to enlarge and eventually break in pieces.

The other options listed are chemical processes respectively.

Answer : Graph 1 is an endothermic reaction and Graph 2 is an exothermic reaction. The labeling of both the graphs are shown below.

Explanation :

Endothermic reaction : In this reaction, the energy is absorbed from the surrounding.

In the endothermic reaction, the energy of reactant are less than the energy of product.

Exothermic reaction : In this reaction, the energy is released into the surrounding.

In the exothermic reaction, the energy of reactant are more than the energy of product.

Transition state : It is a state when the reactant molecules absorb energy then their bonds are loosened and new lose bonds are formed between them. The intermediate formed is known as activated complex or transition state. It is unstable state and immediately dissociates to form the stable products.

Activation energy : The minimum amount of energy absorbed by the reactant molecules so that their energy becomes equal to the threshold energy.

Hence, the labeling of both the graph 1 and 2 are shown below.

Your question on 'why does it conduct more before and after this minimum point' refers to electronic conduction in a material. The 'minimum point' might indicate the moment when a shift occurs due to variations induced by inducing polarization or changes in potential. The conduction is higher before and after this point due to the internal electric field created by shifting negative and positive charges.

From the details provided, your query about 'why does it conduct more before and after this minimum point' seems to be referring to a process of electronic conduction in a material under the influence of an insulator or a potential change. Hence, we can look at it under Electricity and Magnetism in physics. Referring to your context, about inducing polarization and charge distribution, this can create variations in the conduction capability of a material.

As for why it 'conducts more before and after this minimum point', it can correspond to specific points along a potential gradient where the electronic conduction shifts upward or downward due to the variations induced by the polarizing effect or changes in potential - regions of higher or lower potential can impact motion of charged particles.

If you look at a graph detailing this phenomenon, it might show a 'minimum point' that indicates the moment when this shift occurs. Before and after this minimum point, the conduction is higher due to the concentration of negative charges at one end and positive at the other, which creates an internal electric field that increases conductivity.

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Answer : The given number in scientific notation will be, [tex]6.55\times 10^{-7}ml[/tex]

Explanation :

Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example :

90000 is written as [tex]9.0\times 10^4[/tex]

999.9 is written as [tex]9.999\times 10^{-2}[/tex]

As we are given that the number is, 0.000000655 ml

This number is written in scientific notation as :

[tex]6.55\times 10^{-7}ml[/tex]

Hence, the given number in scientific notation will be, [tex]6.55\times 10^{-7}ml[/tex]

 The completed  chart   atomic number 19  is as below ,

1S  2

2s 2

2p 6

3s 2

3p 6

4s 1

3d 0

4p 0

5s 0

 Explanation

 According to Aufbau  principle  in ground  state, electrons of atom fill  the  atomic orbital of lowest  energy  level   before  occupying  that of higher energy level .

Therefore  element  in  atomic number 19  has  1s2 2s2 2p6 3s2 3p6 4s1  electron configuration .

The kinetic energy of a sulfur trioxide molecule with a velocity of 470 m/s is calculated to be approximately 1.47x10⁻²2 Joules.

The kinetic energy of an object can be calculated using the formula KE = 1/2 mv², where m is the mass and v is the velocity of the object. In this case, the object is a sulfur trioxide (SO3) molecule and the velocity is provided as 470 m/s. However, we do not have the mass of the SO3 molecule directly, but we can calculate it.

The molar mass of SO3 is about 80 grams per mole (or 80x10⁻³ kg/mole). We can convert this to mass per molecule by using Avogadro's number (6.022x10²³ molecules/mole). This results in a mass of approximately 1.33x10⁻²6 kg for the sulfur trioxide molecule.

Now we can calculate the kinetic energy by substituting the values into the formula.

KE = 1/2 * 1.33x10⁻²6 kg * (470 m/s)² = 1.47x10⁻²2 Joules.

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