HELP PL
Are these measurements (1.02 g/mL and 1.43 g/mL) precise? Explain.

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

Compare and contrast physical changes with chemical changes.

Draw metallic bonding if two copper