In exothermic reactions, temperatures of surrounding increases. Theses surroundings include (4)? Give 3 examples of exothermic reactions.

Surroundings include - Solvent - Air around test -tube - Test tube itself - Anything dipping into the test-tube Examples of exothermic reactions include 1. Combustion of fuels 2. Oxidation of carbohydrates in bodies of animals and plants (respiration) 3. Reaction of water with quicklime (calcium oxide)