A 16.5 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess HCI. The resulting reaction produces 5.27 L of carbon dioxide gas at 28 C and 675 torr. Write a balanced chemical equation for the reaction that takes place between magnesium carbonate and HCI. Include physical states. chemical reaction: MgCO, (s) + 2HCl(aq) MgCO3(s) + 2HCl(aq) MgCl, (aq) + CO2(9) + H20(1) g Incorrect Write a balanced chemical equation for the reaction that takes place between calcium carbonate and HCl. Include physical states. chemical reaction: CaCO3(s) + 2HCl(aq) CaCl(aq) + CO2(g) + H2O(1) Incorrect Calculate the total number of moles of carbon dioxide that forms from these reactions. moles of carbon dioxide: 0.189 mol Assuming the reactions are complete, calculate the precentage by mass of magnesium carbonate and calcium carbonate in the mixture. 48.24 magnesium carbonate: % Incorrect 51.75 calcium carbonate