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प्रश्न
State whether the following is physical or chemical changes.
Melting of wax —
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उत्तर
physical change.
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संबंधित प्रश्न
State whether the following is physical or chemical changes.
burning of wood -
True or false?
During a physical change energy is either given out or absorbed by the system.
Fill in the blank
An earthquake is a _______ change.
Melting of solid (wax) is a physical change.
Chemical changes are accompanied by changes in energy.
What role does energy play in initiating a chemical change ?
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Under which different types can the following changes be classified?
Bursting of a cracker.
Under which different types can the following changes be classified?
Stretching of a spring.
How can a change occur in a substance?
