Two class IX students, kaveri and Nalin , were asked to take 5.3g of sodium carbonate and 6 g of ethanoic acid to make 2.2g of carbon dioxide, 0.9g of water and 8.2g of sodium ethanoate. Kaveri followed the instructions but Nalin took the chemicals without measuring their amounts. (a)Whose activity do you think will be in agreement with the law of conservation of mass?
(b) State the law of conservation of mass. (c)Whose method do you like and why?
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