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Question 23 of 25 PLEASE ANSWER!!!! How can you be certain that a chemical change has happened? O A. A new substance is formed. O B. A substance changes state. O C. The color of a material changes. O D.
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Question 23 of 25

PLEASE ANSWER!!!!
How can you be certain that a
chemical change has happened?
O A. A new substance is formed.
O B. A substance changes state.
O C. The color of a material changes.
O D. The amount of a material changes.

User Mewel
by
8.7k points

1 Answer

0 votes
A
A formed substance changes and it state change
User Bob Sponge
by
8.5k points
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