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3 years ago

I NEED HELP PLEASE! ITS DUE IN 30 MINUTES

Chemistry

1 answer:

notka56 [123]3 years ago

7 0

Answer:

The correct answer is A

Explanation:

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2 years ago

All molecules are made of similar type of atom true or false

vichka [17]

Answer:

False

Explanation:

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2 years ago

Read 2 more answers

Which statement indicates that a substance may be an ionic compound?

lapo4ka [179]

If it has a metal and a nonmetal. Not sure if this helps, but I hope it does :)

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3 years ago

Which of the following is not found in the nucleus of an atom?

Ulleksa [173]

A. electron. The nucleus has protons and neutrons, quark is the particle which forms protons and neutrons.

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3 years ago

Consider the reaction below.

Law Incorporation [45]

Answer:

<u>First choice: 0.042</u>

Explanation:

Given decomposition reaction:

1PCl₅ (g) ⇄ 1PCl₃ + 1Cl₂(g)

Equilibrium constant:

$K_{eq}=\frac{[PCl_3]^1[Cl_2]^1}{[PCl_5]^1}$

Stoichiometric coefficients and powers equal to 1 are not usually shown as they are understood, but I included them in order to shwow you how they intervene in the equilibrium expressions: each concentration is raised to a power equal to the respective stoichiometric coefficient in the equilibrium equation.

So, your calculations are:

$K_{eq}=\frac{(0.020M)(0.020M)}{0.0095M}=0.042M$

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3 years ago