7. All of the following are evidences of chemical change EXCEPT
a. Formation of gases
c. Formation of new products
b. Release of heat d. Flexibility of materials
d.flexibility og materials
8. Which of the following phases involves chemical change?
a. freezing
c. condensation
b. decomposition
d. precipitation
a. Formation of gases
c. Formation of new products
b. Release of heat d. Flexibility of materials
d.flexibility og materials
8. Which of the following phases involves chemical change?
a. freezing
c. condensation
b. decomposition
d. precipitation
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Answer:
7.C.
8.C.
Explanation:
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Answer:
7) D Releasing of Material
8) A Freezing