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In which of the following reactions, law of mass conservation is not valid and why? (1) _4Be^{9 }+ _2He^4 → _6C^{12} + _0^1n (2) C + O_2 → CO_2 (3) CH_4 + 2O_2 → CO_2 + 2H_2O (4) NaOH + HCl → NaCl + H_2O

Answer» In which of the following reactions, law of mass conservation is not valid and why? (1) _4Be^{9 }+ _2He^4 → _6C^{12} + _0^1n (2) C + O_2 → CO_2 (3) CH_4 + 2O_2 → CO_2 + 2H_2O (4) NaOH + HCl → NaCl + H_2O


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