Answer:

2. Because of the continual reactions taking place between fuel and oxygen, which generate surplus amounts of heat energy, the flame will always be hot enough to keep the fuel at ignition temperature. Therefore, the fire will continue to burn as long as there is enough fuel and oxygen available.

3. chemical reactions

A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. Chemical changes occur through the process of chemical reactions, and the resulting substances have different properties because their atoms and molecules are arranged differently.

Explanation:

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