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2 answers:
15 guesting i think it not right
mass of product= 40 +23= 63 grams
Explanation:
we use the law of conservation of mass which says that mass can neither be created and nor destroyed.So sum of mass of all the reactants is equal to the sum of mass of all the products.
Here sum of mass of reactants= 40+23= 63 grams
so the mass of products=63 grams
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