Add/ Subtract Sig Fig: Solve and Round accordingly 2.6391 + 34.3124 + 38.9223

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

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood