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1.7 , g of silver nitrate is dissolved in 100 , g of water, and 0.585 , g of sodium chloride is dissolved in 100 , g of water. Both are mixed and a chemical reaction occurs. 1.435 , g of silver chloride and 0.85 , g of sodium nitrate are formed. Which law of chemical combination is shown by the above reaction?

Options

  1. ALaw of multiple proportions
  2. BLaw of conservation of mass
  3. CLaw of reciprocal proportions
  4. DLaw of constant proportions

Correct answer

B. Law of conservation of mass

Step-by-step solution

Total mass of reactants = Mass of silver nitrate + Mass of water + Mass of sodium chloride + Mass of water Total mass of reactants = 1.7 + 100 + 0.585 + 100 = 202.285 , g Total mass of products = Mass of silver chloride + Mass of sodium nitrate + Mass of water Total mass of products = 1.435 + 0.85 + 200 = 202.285 , g Since the total mass of reactants is exactly equal to the total mass of products, this reaction demonstrates the law of conservation of mass. Answer: Law of conservation of mass

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