Chemical reaction, combustion and global warming
저자: Rey Skywalker
1. Conservation of mass during chemical changes
1.1. sultur+iron->iron sulfide
1.2. 32g+36g->88g
2. Combustion
2.1. The substance that burns is called the fuel.
2.2. COmbustion needs thermal energy (heat) to get it started.
2.3. Combustion is a chemical reaction which thermal energy and light energy are produced.
2.4. During combustion, oxygen in the air combines with another element to form an oxide. This is a type of oxidation reaction.
2.4.1. carbon+oxygen->carbon dioxide+light+thermal energy
2.4.2. magnesium+oxygen->magnesium oxide (powder)+bright sparkling light+thermal energy
2.4.3. magnesium+oxygen->magnesium oxide (powder)+bright sparkling light+thermal energy