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What is an an example of a chemical reaction?
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What is an an example of a chemical reaction?

What is an an example of a chemical reaction?-example-1
User Bojan Milic
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2 Answers

5 votes

Answer:

2

Step-by-step explanation:

Number 1 wouldn't be because it is a physical change

Number 3 wouldn't be because it is a physical change, as well

Number 4 wouldn't be because it is a physical change, too.

Therefore, it is 3

Hopefully I helped!

-Lavander Vye

User GClaramunt
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4.2k points
5 votes

Answer:

nail rust!!!!!!!!!!!!!!!!!!

User KiNgMaR
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4.0k points
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