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Question
Give Reason.
1. Steam changes to water is called a physical change. Why??
2. Cooking of food is a chemical change. Why??
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Class 7
Board ICSE
SUB - Chemistry
Chapter - Physical and chemical change
Answers
Answered by
1
Answer:
when steam changes to water it is still aform of water that is why nonew substance is formed and it is a physical change
when food is cooked due to heat and the ingredients we aad to it the chemical state of the food changes that is why it is chemical change
Answered by
1
Answer:
answer 1 .it is an reversible process becoz when steam gets chages to water it get again changes to steam only.
2 ya its trues that cooking of food is a chemical change becozz when food is cooked it cant get changed to its raw form.
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