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jeka94
3 years ago
5

Which of an atom's electrons are involved in chemical reactions?

Chemistry
1 answer:
Nadya [2.5K]3 years ago
4 0

it’s C

i hope i help you but if not DO NOT FORGET STAY SAFE AT HOME

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What makes the human thumb so special?
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The thumb alone is controlled by nine separate muscles; The hand has been used as a symbol of protection since ancient times; The human hand is different to the hands or paws of other animals, because it has fingers and a thumb that can work together. Each finger has 3 bones and the thumb has two bones

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A rock is found to have a mass of 200 g and a volume of 100 ml. what is the rock's density?
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What is the correct name for the ionic compound, MgCl2?
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2. What pressure is required to compress 196.0 L of air at 1.00 atmosphere into a cylinder
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<h2>7.54 atm </h2>

Explanation:

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P_2 =  \frac{P_1V_1}{V_2}  \\

where

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V2 is the final volume

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3 0
2 years ago
What is the entropy change in the environment when 5.0 MJ of energy is transferred thermally from a reservoir at 1000 K to one a
Leni [432]

Answer:

The entropy change in the environment is 3.62x10²⁶.

Explanation:

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\Delta S = \frac{Q}{k_{B}}(\frac{1}{T_{f}} - \frac{1}{T_{i}})

Where:

Q: is the energy transferred = 5.0 MJ

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T_{f}: is the final temperature = 500 K

Hence, the entropy change is:

\Delta S = \frac{5.0 \cdot 10^{6} J}{1.38 \cdot 10^{-23} J/K}(\frac{1}{500 K} - \frac{1}{1000 K}) = 3.62 \cdot 10^{26}                                    

Therefore, the entropy change in the environment is 3.62x10²⁶.

I hope it helps you!          

7 0
3 years ago
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