Classify the following as physical or chemical change. (a) Zinc dissolves in hydrochloric acid with evolution of hydrogen gas.(b) Metallic sodium is soft enough to be cut with a knife.(c) Most metal oxides from alkalis on interacting with water
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Answer:
a) is chemical change
b) is physical change
c) is chemical change
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Answer:
a and c chemical change
b physical change
Explanation:
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