GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following reactions RELEASE energy? (gets warm) There are 3 here.
A
burning candle
B
respiration in cells
C
produces electric current
D
baking bread
Explanation: 

Detailed explanation-1: -The reaction of quick lime(CaO) with water to form lime water Ca ( OH ) 2 is an example of a combination reaction and the nature of the reaction is exothermic.

Detailed explanation-2: -The four types of energy that are related to the absorption or released during the chemical reactions are heat energy, light energy, sound energy, and electrical energy.

There is 1 question to complete.