Determine the coefficients for the following equations using the "Guess & Check" method:



Column A:

1. $2\text{Fe}_2\text{O}_3 + \underline{3}\text{C} \rightarrow 4\text{Fe} + \underline{3}\text{CO}_2$
   
2. $\_\text{Na} + \_\text{F}_2 \rightarrow \_\text{NaF}$
   
3. $\_\text{K} + \_\text{B}_2\text{O}_3 \rightarrow \_\text{K}_2\text{O} + \_\text{B}$
   

Column B:

1. $\_\text{H}_2\text{O} + \_\text{Na} \rightarrow \_\text{NaOH} + \_\text{H}_2$
   
2. $\_\text{CO}_2 + \_\text{H}_2\text{O} \rightarrow \_\text{O}_2 + \_\text{C}_6\text{H}_{12}\text{O}_6$
   
3. $\_\text{C} + \_\text{S}_8 \rightarrow \_\text{CS}_2$