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givi [52]
3 years ago
15

Which of the following is an example of a chernical change?

Chemistry
2 answers:
matrenka [14]3 years ago
7 0

Answer:

the chemical change occur in burning paper.

boiling water does not make any chemical change

melting gold "

dissolving sugar in water "

in these examples the reactant remains as the same , even if you melt gold it is gold itself, it only change its state.

AVprozaik [17]3 years ago
6 0
Answer:

Burning paper.

Explanation:

A chemical change is a change that changes the molecular structure of the substance you are changes. Boiling water would make water vapour, which is still water thus it is a physical change. Dissolving sugar in water is still sugar in water thus it is a physical change. Melting gold makes liquid gold which is still gold thus it is a physical change. Burning paper however changes from paper to ash and smoke, which are different on the molecular level, therefore it is a chemical change.
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