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Ymorist [56]
3 years ago
9

HOW CAN YOU TELL THAT A CHEMICAL HABGE HAS OCCURRED. PLZ HELP

Chemistry
1 answer:
denpristay [2]3 years ago
3 0

That is choice A.

The products are different from the reactants.

This may be easy to see - for example when one of the products is precipitated, like when you add BaCL2 to Na2SO4.  The BaSO4 formed is insoluble in water and appears as a white precipitate.

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5 0
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Explanation:

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Observation And Assessment
Sloan [31]
I'm confused here??????
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3 years ago
Complete combustion of a 0.600-g sample of a compound in a bomb calorimeter releases 24.0 kJ of heat. The bomb calorimeter has a
coldgirl [10]

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<h3>Further explanation</h3>

Given

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Required

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