For each of the reactions, calculate the mass (in grams) of the product that forms when 15.39

Question:

For each of the reactions, calculate the mass (in grams) of the product that forms when 15.39 g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant. a. 2 K(s) + Cl(g) b. 2 K(s) + Br(1) 2 KCl(s) 2 KBr(s) c. 4 Cr(s) + 30(g) 2 CrO3(s) d. 2 Sr(s) + O(g) 2 SrO(s)