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Ostrovityanka [42]
3 years ago
6

Which of the following is not an indication of a chemical change?

Chemistry
1 answer:
Sauron [17]3 years ago
5 0

Answer:

C. precipitate formation.

Explanation:

options C is correct answer.

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Answer:

The expression to calculate the mass of the reactant is m = \frac{1.080kJ}{31.2kJ/g}

Explanation:

<em>The amount of heat released is equal to the amount of heat released per gram of reactant times the mass of the reactant.</em> To keep to coherence between units we need to transform 1,080 J to kJ. We do so with proportions:

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