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mel-nik [20]
3 years ago
14

State which statement is a physical change or a chemical change:

Chemistry
1 answer:
Oliga [24]3 years ago
4 0

Answer:

Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

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A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
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ca

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A salad is an example of a mixture that is ... Mixed
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3.00 moles of gas are pumped into a 1.00L rigid container with a pressure of 1.98 atm. The gas is released from the container un
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Answer:

1.18 moles of gas

Explanation:

3.00 moles of gas are pumped into a 1.00L rigid container with a pressure of 1.98 atm. The gas is released from the container until the pressure is 0.78 atm, how many moles of gas remain in the container?​

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? = 3.00 X 0.78/1.98  =1.18 moles of gas

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If variable A decreases, how will variable B respond?
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