Question

understanding concepts

1. what is \combustion\?
2. (a) when fossil fuels burn, what are the reactants?

(b) what are the two main products of this combustion?
(c) why are other products also formed?

1. illustrate which part of the fire triangle is removed when each of the following methods is used to stop combustion.

Explanation:

1. Combustion is a chemical process of rapid oxidation of a substance in the presence of oxygen, accompanied by the production of heat and light.
2. (a) When fossil - fuels burn, the reactants are the fossil - fuel (a hydrocarbon) and oxygen from the air. (b) The two main products of this combustion are carbon dioxide and water. (c) Other products are formed because fossil - fuels are not pure substances and may contain impurities like sulfur, nitrogen, etc. which react during combustion to form sulfur oxides, nitrogen oxides, etc.
3. The fire triangle consists of fuel, oxygen, and heat. Different fire - stopping methods remove different parts. For example, closing the valve on a propane... (description would continue depending on full question).

Answer:

1. Combustion is a rapid oxidation process with heat and light production.
2. (a) Fossil - fuel and oxygen. (b) Carbon dioxide and water. (c) Due to impurities in fossil - fuels.
3. (Answer depends on full question details for each method).