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kozerog [31]
2 years ago
5

What are the 2 signs you will observe if a chemical change has occured?

Biology
1 answer:
nadya68 [22]2 years ago
6 0
Hello:)

Two signs you can observe are physical changes such as burnt paper to ashes, and you can see in what form it is in, such as liquid,gas or solid.

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8 0
3 years ago
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Answer:

1. Acid

2.  Acid

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6. Bases

7. acid

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*Anybody correct me if I'm wrong*

Explanation:

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