Dissolving calcium carbonate in hydrochloric acid produces aqueous calcium chloride, carbon dioxide, and water. CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)

What mass of CO2 is produced by the reaction of 9.58 g CaCO3?
If 67.1g of CO2 is produced by this reaction, what mass of HCl must have reacted?
If 0.812 mol of HCl is used in this reaction, what mass of CaCO3 would be consumed? What mass of CO2 would be produced?

Find the mass in grams of 1.37x1020 particles of h3po4

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

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.