Chemical Changes occur as a result of combination of two substances through chemical reactions to form new substances. These changes occur after there is a reaction which may gives out heat or absorb heat. Chemical change exists in many ways which are seen or detected during daily activities. Take this quiz on Chemical changes!
Endothermic reaction
Exothermic reaction
Reversible reaction
Catalytic reaction
Fractional distillation
Filtration
Decantation
Sieving
Kelvin
Minutes
Ohm
Second
It requires heat always
No substance formed
Easily reversible
Not easily reversible
Burning of paper
Rusting of metals
Decomposition of substance
Filtration
Fermentation
Distillation
Crystallisation
Decantation
Option 1
Option 2
Option 3
Option 4
Base
Acid
Water
Hydrocarbon
Hydrogen
Sodium
Oxygen
Calcium
Nitrogen
Oxygen
Calcium
Hydrogen