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प्रश्न
Name the following.
A form of energy required for a chemical change.
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उत्तर
Generally, HEAT ENERGY is required but light, pressure, or electricity can also be needed.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Making a fruit salad with raw fruits
Is burning a physical change or a chemical change? Why?
Write true or false
Melting of ice is a physical change.
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Write true or false
Decomposition of leaves is a fast change.
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
What are man-made changes ?
Which of the following are physical changes and which are chemical changes ?
Freezing of water
Iron pipes coated with zinc do not get rusted easily.
Give an example of a physical change in which the color of the substance changes.
