Question

In an experiment, Rhea put two beakers on a balance. One contained 20 cm3 of hydrochloric acid. The other contained 5 g of sodium carbonate. She poured the acid onto the sodium carbonate. They reacted. Below is the word equation of the reaction: The total mass at the start was 149.0 g. When the reaction stopped, the reading on the balance was 147.0 g. Is the law of conservation of mass followed in this reaction? Explain.

Answer 1

Answer:

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