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3 votes
When matter is heated, particles within the matter will.

A. speed up.
B. produce sounds.
C. change into different types of particles. D change colors.​

2 Answers

6 votes
The answer is A: speed up.
User Boendal
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3.7k points
7 votes
The answer is A, when these particles are heated they tend to speed up.
User Youans
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