Alex9089435028
18.07.2019 •
Chemistry
The volume of a sample of oxygen gas changed from 10 ml to 11 ml as the temperature changed. is this a chemical or physical change?
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Ответ:
A chemical change is a change in the chemical composition of a substance. A physical change is a change in the physical properties of a substance, such as shape, color, and volume. The gas is increasing in volume due to change in temperature, which is a property of gas. However, it can be easily be changed back into the previous 10ml volume. This makes the change a physical change, as the chemical composition isn't affected.
Ответ:
planet A is Mars and planet B is earth
Explanation:
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