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Chemistry CBSE Live product
Class 9 (2026-27)
Atomic Foundations of Matter
Laws of Chemical Combination
1.
Conservation of mass in physical change
Question:
1
m.
Choose the best answer to the questions given below:
Fathima states, "Mass is conserved only in chemical changes, not in physical changes." Which response is correct?
The statement is correct
Mass is conserved only during melting
Mass is conserved only in open systems
Mass is conserved in both physical and chemical changes
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