SAFETY: Why is it important to handle silica powder in a fume cupboard? More than one answer may be correct. a. The powder, if inhaled, can cause serious problems to the respiratory tract. b. The powder is fine and easily inhaled. c. It allows for any spills to be easily contained. d. It prevents contamination of the silica powder.

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant