Complete and balance the chemical equation:
`"_____" + 5O_2 to 4CO_2 + 2H_2O ` + heat

Explanation

To complete and balance the chemical equation given in the question, we need to identify the hydrocarbon that reacts with oxygen to produce carbon dioxide and water. The equation is:

\[ \text{_____} + 5O_2 \rightarrow 4CO_2 + 2H_2O + \text{heat} \]

### Step-by-Step Solution:

1. **Identify the Reaction Type**:
- The reaction is a combustion reaction, where a hydrocarbon reacts with oxygen to produce carbon dioxide, water, and heat.
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