Advertisements
Advertisements
Question
What is a decomposition reaction?
Advertisements
Solution
A decomposition reaction is a reaction in which a compound breaks down into two or more simpler substances. The general form of a decomposition reaction is:
AB → A + B
Most decomposition reactions require an input of energy in the form of heat, light, or electricity.
APPEARS IN
RELATED QUESTIONS
Explain, giving one example of the following chemical changes:
Double decomposition
Explain, giving one example of the following chemical change:
Thermal dissociation
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc carbonate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Mercury [II] oxide
Define the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
Give a balanced equation for thermal decomposition of lead nitrate
Give a balanced equation for thermal decomposition of calcium hydroxide
Give a reason why zinc displaces hydrogen from dilute sulphuric acid but copper does not.
Explain the term double decomposition precipitation reaction.
Give a balanced equation for the following type of reaction:
A soluble salt of lead formed from an insoluble base by double decomposition – neutralization.
