Why is blue fire considered the hottest?

Explanation

**Step-by-Step Solution:**

1. **Understanding Combustion**: Combustion is a chemical reaction that occurs when a substance reacts with oxygen to produce heat and light. There are two types of combustion: complete combustion and incomplete combustion.

2. **Complete Combustion**: In complete combustion, a fuel reacts with an adequate supply of oxygen. This reaction produces carbon dioxide and water as the main products, along with a significant amount of heat.

3. **Oxygen Supply**: Blue fire is associated with complete combustion, which occurs when there is an excess supply of oxygen. This means that the fuel is burning efficiently, allowing for a higher temperature.

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