February 16th - Ahmad Kilani

Endothermic and Exothermic

 So there are two types of chemical reactions; endothermic reactions and exothermic reactions:

- Endothermic reactions are reactions that require energy to take place, and it's usually two or more elements joining together, storing energy in the process, for example, the making of glucose in plants

6CO2 +  6H2O + light (energy) --> 1C6H12O6 + 6O2

Endothermic Graph

- Exothermic reactions are reactions that release energy when they take place, it's usually a big compound breaking down into smaller parts like in combustion; an example would be the burning of glucose;

1C6H12O6 + 6O2 --> 6CO2 + 6H2O

Exothermic Graph

Exothermic and Endothermic can also be processes, not just reactions, such as freezing, and melting.