Question

1) HgO - Hg+ 022) Fe + Cl2 -> FeCl33) Na + S —→ Na2S4) Cr2O3 + H2 → Cr + H205) Al+S -> Al2S36) N2 + H2NH3​

Answer 1

Объяснение:

2HgO=2Hg+O2

2Fe+3Cl2=2FeCl3

2Na+S=Na2S

Cr2O3+3H2=2Cr+3H2O

2Al+3S=Al2S3

N2+3H2=2NH3

Answer 2

It seems like you've provided a list of chemical reactions. I'll help you balance these chemical equations:

1. HgO → Hg + O2 This equation is already balanced because there is one mercury (Hg) atom on both sides and one oxygen (O) atom on both sides.

2. Fe + Cl2 → FeCl3 This equation is not balanced. To balance it, you can add a coefficient of 3 in front of FeCl3 on the right side: Fe + 3Cl2 → 2FeCl3

3. Na + S → Na2S This equation is already balanced. There is one sodium (Na) atom on both sides, and one sulfur (S) atom on both sides.

4. Cr2O3 + H2 → Cr + H2O This equation is not balanced. To balance it, you can add coefficients as follows: Cr2O3 + 3H2 → 2Cr + 3H2O

5. Al + S → Al2S3 This equation is not balanced. To balance it, you can add coefficients as follows: 2Al + 3S → Al2S3

6. N2 + H2 → NH3 This equation is not balanced. To balance it, you can add coefficients as follows: N2 + 3H2 → 2NH3

Now, all of the chemical equations are balanced.