)Answer all please a) What is the mass in g of Ca(NO3)2 required to prepare 159 milliliters of 0.2 M Ca(NO3)2 solution?   b) What is the concentration of a 31 mL diluted solution, if 5 mL of the concentrated 5 M stock is used to perform dilution? c)Predict the products when mixin 1 mol of HCl with 1 mol of Ca(OH)2

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