need answers for both 16 and 17 thank you :)

16. A 10.00g sample of a BaCl2 hydrate is heated until dry. The anhydrous BaCl2 has a mass of 8.52 grams. Determine the formula and name of the hydrate. (2pt) 17. Determine the number of atoms of copper in a block of copper that measures 2.00cm3.50cm7.00 cm if the density of copper is 8.96 grams /cm3. 16. A 10.00g sample of a BaCl2 hydrate is heated until dry. The anhydrous BaCl2 has a mass of 8.52 grams. Determine the formula and name of the hydrate. (2pt) 17. Determine the number of atoms of copper in a block of copper that measures 2.00cm3.50cm7.00 cm if the density of copper is 8.96 grams /cm3