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Thepotemich [5.8K]
4 years ago
9

PLZZZZ HELP!!!!!! WILL GIVE BRAINLIEST!!

Chemistry
2 answers:
guapka [62]4 years ago
4 0
Color change bubbles and i think dissolving
Jlenok [28]4 years ago
4 0

The formation of bubbles and a colour change are signs of a chemical change.

One of the substances must have evolved the gas and changed into something else.

One of the substances must have changed into something else with a different colour.

Both above are chemical changes.

<em>Evaporation</em> and <em>dissolving</em> are <em>physical changes</em>, because the substances do not change their chemical structure in the process.

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According to equation,

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Solving for X,
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Calculating number of molecules for 20 moles of H₂O,
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Solving for X,
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