Question

Write the characteristics of chemical changes

Answer 1

The characteristics of chemical changes are:

• There will be a change of colour.
• There will be a change of odour.
• There will be a change of temperature or a heat transfer.
• There will be an Evolution of a gas.
• There will be a Formation of a precipitate.
• It is irreversible in nature.
• The composition of the original substance or the starting component changes.
• A new substance will be formed.
• A chemical change is a permanent change.