Question: After a chemical reaction, the total mass of reactants and products [MP PMT 1989]
(a) Is always increased
(b) Is always decreased
(c) Is not changed
(d) Is always less or more
Correct Answer: (c) Is not changed
Question: After a chemical reaction, the total mass of reactants and products [MP PMT 1989]
(a) Is always increased
(b) Is always decreased
(c) Is not changed
(d) Is always less or more
Correct Answer: (c) Is not changed
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