Column A

Question

1.
2 H2O → 2 H2 + O2

:
2 H2O → 2 H2 + O2

2.
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

:
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

3.
2 Na + Cl2 → 2 NaCl

:
2 Na + Cl2 → 2 NaCl

4.
4 AlBr3 + 3 O2 → 2 Al2O3 + 6 Br2

:
4 AlBr3 + 3 O2 → 2 Al2O3 + 6 Br2

5.
KCl + NaI → KI + NaCl

:
KCl + NaI → KI + NaCl

Answer 1

It looks like you are listing chemical equations for different reactions. Below, I'll organize and clarify your list. Each equation represents a chemical reaction, typically in balanced form.

1. Decomposition of Water: \[ 2 \text{H}_2\text{O} \rightarrow 2 \text{H}_2 + \text{O}_2 \]

2. Combustion of Ethane: \[ 2 \text{C}_2\text{H}_6 + 7 \text{O}_2 \rightarrow 4 \text{CO}_2 + 6 \text{H}_2\text{O} \]

3. Formation of Sodium Chloride: \[ 2 \text{Na} + \text{Cl}_2 \rightarrow 2 \text{NaCl} \]

4. Combustion of Aluminum Bromide: \[ 4 \text{AlBr}_3 + 3 \text{O}_2 \rightarrow 2 \text{Al}_2\text{O}_3 + 6 \text{Br}_2 \]

5. Double Displacement Reaction: \[ \text{KCl} + \text{NaI} \rightarrow \text{KI} + \text{NaCl} \]

If you need further information, such as balancing these equations, identifying the reaction types, or anything else related to these chemical reactions, please let me know!