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2 December, 02:43

What only happens during a chemical reaction?

a. A solution is made.

b. New substances are formed.

c. Bubbles form.

d. Colors change.

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Answers (1)
  1. 2 December, 06:42
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    B. New substances are formed. In a chemical reaction, the starting molecule must be changed or turn into another. For example: rusts that form in a tin can is a chemical reaction. The iron in the can combines with the oxygen in the atmosphere, creating rust (iron oxide), which is a different substance.
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