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प्रश्न
Filling up a balloon with hot air is a _______ change.
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उत्तर
Filling up a balloon with hot air is a
physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Define physical change. Give two examples for the above changes.
State whether the following is physical or chemical changes.
shaping a piece of glass —
State whether the following is physical or chemical changes.
cutting wood into small pieces —
Classify the following as a physical or a chemical change.
Drying of wet clothes
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
When solute is dissolved in a solvent it forms a solution.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Mention a few physical properties of a substance.
