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zhenek [66]
4 years ago
14

On what basis do we distinguish between substances and separate them from one another?

Chemistry
1 answer:
Nuetrik [128]4 years ago
4 0
Density
Heating properties
Solubility
Electric Properties
Magnetic Properties
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At 500°C the equilibrium constant, Kp, is 4.00 × 10–4 for the equilibrium: 2HCN(g) H2(g) + C2N2(g) What is Kp for the following
Andrews [41]

<u>Answer:</u> The value of K_p for the equation is 2.5\times 10^3

<u>Explanation:</u>

The given chemical reaction is:

2HCN(g)\rightleftharpoons H_2(g)+C_2N_2(g);K_1

The chemical equation for which the equilibrium constant is to be calculated follows:

H_2(g)+C_2N_2(g)\rightleftharpoons 2HCN(g);K_p

As, the equation is the result of the reverse of given reaction. So, the equilibrium constant for the equation will be the inverse of equilibrium constant for the given reaction.

The value of equilibrium constant for the equation is:

K_p=\frac{1}{K_1}

We are given:

K_1=4.00\times 10^{-4}

Putting values in above equation, we get:

K_p=\frac{1}{4.00\times 10^{-4}}=2.5\times 10^3

Hence, the value of K_p for the equation is 2.5\times 10^3

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4 years ago
Give the change in condition to go from a gas to a solid. Group of answer choices cool or increase pressure cool or reduce press
vfiekz [6]

Answer:

cool or increase pressure

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  • For a gas to form solid. There must be reduced heat and pressure. The deposition of gas into solid occurs through the removal of thermal energy. The air looses thermal energy and changes into solid.
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Oceans cover over 70% of Earth's surface, and precipitation constantly adds freshwater to the oceans. Yet, ocean levels remain r
Rzqust [24]

Answer:

D.

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I had looked it up on the quiz site

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What is the ratio of hydrogen(H) to oxygen(O) in hydrogen peroxide(H2O2)?
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Answer: 2:2 but if simplified it’s 1:1

Explanation:

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Chemistry help!
Norma-Jean [14]

Refer to the attachment.

Hope this helps you...

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3 years ago
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