1\cdot7\text{ g} of silver nitrate is dissolved in 100\text{ g} of water, and 0\cdot585\text{ g} of sodium chloride is dissolved in 100\text{ g} of water. Both are mixed and a chemical reaction occurs. 1\cdot435\text{ g} of silver chloride and 0\cdot85\text{ g} of sodium nitrate are formed. Which law of chemical combination is shown by the above reaction?
- A. Law of multiple proportions
- B. Law of conservation of mass ✓
- C. Law of reciprocal proportions
- D. Law of constant proportions
Correct Answer: B. Law of conservation of mass
Explanation
The total mass of the reactants is 1.7\text{ g} + 0.585\text{ g} = 2.285\text{ g}. The total mass of the products formed is 1.435\text{ g} + 0.85\text{ g} = 2.285\text{ g}. Since the mass is conserved, it illustrates the Law of Conservation of Mass.
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