Question

KOH + CO2 → K2CO3 + H2O​

Answer 1

2KOH + CO2 → K2CO3 + H2O​

Answer 2

The chemical equation you've provided represents the reaction between potassium hydroxide (KOH) and carbon dioxide (CO2) to form potassium carbonate (K2CO3) and water (H2O). Here's the balanced chemical equation for this reaction:

2 KOH + CO2 → K2CO3 + H2O

In this balanced equation, you can see that 2 molecules of potassium hydroxide (KOH) react with 1 molecule of carbon dioxide (CO2) to produce 1 molecule of potassium carbonate (K2CO3) and 1 molecule of water (H2O).