The mass of the nails and copper sulfate solution used in this investigation was 250g. The mass of the copper and iron sulfate solution produced in this investigation would be 250g. A. Less Then
B. Equal to
C. Greater Than

Please explain!

The answer is B.) Equal to 250g
Because of the Law of conservation of mass, states that mass cannot be created or destroyed by chemical reactions, which is what has taken place. So, the mass of the products before the chemical reaction occurred would be the same (“Equal to”) the mass of the solution produced.