Use your periodic table to determine which element in the group below would be least likely to react with the other elements ?

Chemistry

2 answers:

kipiarov [429]2 years ago

8 0

Answer:

Neon

Explanation:

Neon is a noble gas. Noble gases do not react with other elements. Carbon, Boron, and Oxygen would all react with each other.

natima [27]2 years ago

8 0

B II Neon should be correct
Hope this helps good luck

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Read 2 more answers

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:

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