Question

Dau coroniță!! Urgent!

Answer 1

1. ZnO

MZnO=65,39+16=81,39 g/mol

2. Cu3Cl2

MCu3Cl2=63,55x3+35,45x2=190,65+70,90=261,55 g/mol

3. H2S

MH2S=1,008x2+32,065=2,016+32,065=34,081 g/mol

4. H2O

MH2O=2,016+16=18,016 g/mol

5. Na3Cl

MNa3Cl=22,99x3+35,45=68,97+35,45=104,42 g/mol