Question

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In a reaction, 4.0g of sodium carbonate were reacted with 10g
of hydrochloric acid. The product was a mixture of 2.5g of
carbon dioxide and 11.5g of sodium chloride.

Answer 1

Answer:

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Explanation:

Sodium carbonate and hydrochloric acid are reactants while sodium chloride , carbon dioxide are the products.

According to law of conservation of mass

Mass of reactants = Mass of products

Mass of reactants = 4g + 10g = 14g

Mass of products = 11.5g + 2.5g = 14 g

So here mass of reactants and products are equal , hence this data agrees with Law of Conservation of Mass.

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