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AlekseyPX
3 years ago
11

Identify the group of elements that does not readily combine with other elements.

Chemistry
1 answer:
7nadin3 [17]3 years ago
4 0
Noble gases
also known as Inert gases
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The amount of ________________energy an object has depends on the object's speed and mass.
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Answer:

Momentum

Explanation:

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At a certain temperature this reaction follows second-order kinetics with a rate constant of Suppose a vessel contains at a conc
Norma-Jean [14]

The question is incomplete, here is the complete question:

At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1 M⁻¹s⁻¹

2SO_3(g)\rightarrow 2SO_2(g)+O_2(g)

Suppose a vessel contains SO₃ at a concentration of 1.44 M. Calculate the concentration of SO₃ in the vessel 0.240 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits.

<u>Answer:</u> The concentration of SO_3 in the vessel after 0.240 seconds is 0.24 M

<u>Explanation:</u>

For the given chemical equation:

2SO_3(g)\rightarrow 2SO_2(g)+O_2(g)

The integrated rate law equation for second order reaction follows:

k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)

where,

k = rate constant = 14.1M^{-1}s^{-1}

t = time taken= 0.240 second

[A] = concentration of substance after time 't' = ?

[A]_o = Initial concentration = 1.44 M

Putting values in above equation, we get:

14.1=\frac{1}{0.240}\left (\frac{1}{[A]}-\frac{1}{1.44}\right)

[A]=0.245M

Hence, the concentration of SO_3 in the vessel after 0.240 seconds is 0.24 M

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[Ar] 3d10 4s2 4p5

Explanation:

[Argon]

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