Question

Question was provided via image upload.

Explanation:

Step1: Balance reaction 11

1. Balance Li: Add 2 to Li and LiOH
2. Balance H: Add 2 to H₂O, adjust H₂ to 1
3. Verify all atoms equal

<Expression>
$2\text{Li} + 2\text{H}_2\text{O}
ightarrow 2\text{LiOH} + \text{H}_2$
</Expression>

Step2: Balance reaction 12

1. Balance O: Add 2 to HgO
2. Balance Hg: Add 2 to Hg
3. Verify all atoms equal

<Expression>
$2\text{HgO}
ightarrow 2\text{Hg} + \text{O}_2$
</Expression>

Step3: Balance reaction 13

1. Balance Ca: Add 3 to $\text{Ca(NO}_2\text{)}_2$
2. Balance PO₄: Add 2 to $\text{H}_3\text{PO}_4$
3. Balance H/NO₂: Add 6 to $\text{HNO}_2$
4. Verify all atoms equal

<Expression>
$3\text{Ca(NO}_2\text{)}_2 + 2\text{H}_3\text{PO}_4
ightarrow \text{Ca}_3(\text{PO}_4)_2 + 6\text{HNO}_2$
</Expression>

Step4: Balance reaction 14

1. Balance C: Add 5 to $\text{CO}_2$
2. Balance H: Add 6 to $\text{H}_2\text{O}$
3. Balance O: Add 8 to $\text{O}_2$
4. Verify all atoms equal

<Expression>
$\text{C}_5\text{H}_{12} + 8\text{O}_2
ightarrow 5\text{CO}_2 + 6\text{H}_2\text{O}$
</Expression>

Answer:

1. $2\text{Li} + 2\text{H}_2\text{O}

ightarrow 2\text{LiOH} + \text{H}_2$

1. $2\text{HgO}

ightarrow 2\text{Hg} + \text{O}_2$

1. $3\text{Ca(NO}_2\text{)}_2 + 2\text{H}_3\text{PO}_4

ightarrow \text{Ca}_3(\text{PO}_4)_2 + 6\text{HNO}_2$

1. $\text{C}_5\text{H}_{12} + 8\text{O}_2

ightarrow 5\text{CO}_2 + 6\text{H}_2\text{O}$