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3 years ago

C. What happens to stuff when you add heat energy to it?

Chemistry

2 answers:

Minchanka [31]3 years ago

8 0

Answer:

it warms up

Explanation:

lana66690 [7]3 years ago

8 0

Answer:it depends what kind of stuff ur talking about

Explanation:

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The equilibrium constant, Kc, for the following reaction is 9.52×10-2 at 350 K. CH4 (g) + CCl4 (g) 2 CH2Cl2 (g) Calculate the eq

stiks02 [169]

Answer: The equilibrium concentration of $CH_4\text{ and }CCl_4$ is 0.377 M and equilibrium concentration of $CH_2Cl_2$ is 0.116 M

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}$

For Methane:

Volume of solution = 1 L

Moles of methane = 0.377 moles

Putting values in above equation, we get:

$\text{Molarity of }CH_4=\frac{0.377mol}{1L}\\\\\text{Molarity of }CH_4=0.377M$

For carbon tetrachloride:

Volume of solution = 1 L

Moles of carbon tetrachloride = 0.377 moles

Putting values in above equation, we get:

$\text{Molarity of carbon tetrachloride}=\frac{0.377mol}{1L}\\\\\text{Molarity of carbon tetrachloride}=0.377M$

For the given chemical equation:

$CH_4(g)+CCl_4(g)\rightarrow 2CH_2Cl_2(g)$

The expression for $K_c$ for the given equation follows:

$K_c=\frac{[CH_2Cl_2]^2}{[CH_4][CCl_4]}$

We are given:

$K_c=9.52\times 10^{-2}\\[CH_4]=0.377M\\[CCl_4]=0.377M$

Putting values in above equation, we get:

$9.52\times 10^{-2}=\frac{[CH_2Cl_2]^2}{(0.377)\times (0.377)}$

$[CH_2Cl_2]=0.116M$

Hence, the equilibrium concentration of $CH_4\text{ and }CCl_4$ is 0.377 M and equilibrium concentration of $CH_2Cl_2$ is 0.116 M

8 0

3 years ago

A body that weighs 6 Newton on the earth will weighs – on the moon in newton

Sergeeva-Olga [200]

An object on the moon is 1/6 of the weight of an object on Earth

To find the answer to your question, divide the number of N on Earth by 6, 6N / 6 = 1N

Hope this helps!

6 0

4 years ago

What happens as a result of photoelectric effect

natka813 [3]

Electrons are emitted from the surface of a metal in photoelectric effect.

<h3>What is the photoelectric effect?</h3>

The photoelectric effect is the emission of electron from the surface of a metal when light is shone on the surface..

For electrons to be emitted, the light must have a certain frequency known as threshhold frequency.

Therefore, electrons are emitted from the surface of a metal in photoelectric effect.

Learn more about photoelectric effect at: brainly.com/question/21320305

#SPJ1

5 0

2 years ago

Which element is reduced in the following reaction: 2Mg+O₂ → 2MgO if Mg goes from 0 to +2 and O goes from 0 to -2?

Lyrx [107]

Answer:

Explanation:

The element which is oxidized is the element that losses electrons and its oxidation state be more positive.

The element which is reduced is the element that gain electrons and its oxidation state be more negative.

O goes from 0 to -2, so, it is the element that is reduced.

8 0

3 years ago

a student is asked to prepare 75.0 ml of a 130M solution of HF using a 2.000M standard solution. Calculate the volume in mL of 2

Blizzard [7]

Answer:

Volume required from standard solution = 4675 mL

Explanation:

Given data:

Final volume = 75.0 mL

Final molarity = 130 M

Molarity of standard solution = 2.000 M

Volume required from standard solution = ?

Solution:

We use the formula,

C₁V₁ = C₂V₂

here,

C₁ = Molarity of standard solution

V₁ = Volume required from standard solution

C₂ = Final molarity

V₂ = Final volume

Now we will put the values in formula,

C₁V₁ = C₂V₂

2.000 M × V₁ = 130 M × 75.0 mL

V₁ = 9750 M. mL / 2.000 M

V₁ = 4675 mL

5 0

4 years ago