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castortr0y [4]
3 years ago
6

Help I don’t understand it and I need the answers

Chemistry
1 answer:
il63 [147K]3 years ago
4 0

Answer:

Demonstration 1 showed a chemical change because a new gaseous substance was formed, and demonstration 2 showed a physical change because liquid water became water vapor.

Explanation:

Chemical changes alter the chemical makeup of a subject, and a physical change only alters the appearance of a subject, not the chemical makeup.

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The chemical reaction is expressed as:

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Hope this answers the question. Have a nice day.
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(1)

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