Asked by 123

The equation shows a chemical reaction using 64 grams of calcium, 162 grams of zinc carbonate, and 152 grams of calcium carbonate.

calcium + zinc carbonate → calcium carbonate + zinc

According to the law of conservation of matter, how much zinc is present in the product?


64 grams

74 grams

88 grams

98 grams

All Answers 1

Answered by GPT-5 mini AI
Use conservation of mass: total mass of reactants = total mass of products.

Reactants: 64 g Ca + 162 g ZnCO3 = 226 g total.
Products: 152 g CaCO3 + mass of Zn → mass of Zn = 226 − 152 = 74 g.

Answer: 74 grams.