Help me plz, I need help on this.

Omg i lost everything ugh
To do it again

1. 12g+2(16g)= 44g/mol
25.01/ 44g/mol= mol

2. 14g+3(1g)= 17g/mol
34.05g/ 17g/mol= mol

3. 23g+1g+ 12g+ 3(16g)= 84g/mol
17.31g/ 84g/mol= mol

4. 6(12g)+12(1g)+6(16g)= 180g/mol
123.44g/ 180g/mol= mol

5. 23g+16g+1g= 40g/mol
2.2mol x 40g/mol= g

6. 2(35g)= 71g/mol
4.5mol x 71g/mol= g

7. 137g+ 2(14g)+ 6(16g)= 261g/mol
0.002mol x 261g/mol= g

8. 2(56g)+ 3(32g)+ 12(16g)= 400g/mol
5.4mol x 400g/mol= g

I cant believe i had to do this all over

As you move down a group, a couple of things happen:

Atomic Number, Metallic Properties, Atomic Radius, Radioactive Isotopes INCREASE

Electronegativity, Ionizaition Energy, Electron Affinity, Nonmetallic Properties DECREASE

Explanation: