6. Chemical Quantities & Aqueous Reactions

In a molecular equation, what are the products when sulfuric acid reacts with calcium fluoride? (Assume an acid–salt reaction that produces hydrogen fluoride gas.)

Which of the following is a product of the chemical reaction NiSO4 + K2CO3 → NiCO3 + K2SO4?

When aqueous solutions of (NH_4)_2CO_3 and Mg(NO_3)_2 are mixed, which solid product, if any, is formed?

In the reaction NaOH + HCl → NaCl + H2O, which molecules are the products?