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प्रश्न
Name the following.
A form of energy required for a chemical change.
उत्तर
Generally, HEAT ENERGY is required but light, pressure, or electricity can also be needed.
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संबंधित प्रश्न
A physical change is temporary. Explain.
State the differences between a physical change and a chemical change.
Fill in the blank
Revolution of the earth around the sun is a ________ change.
Fill in the blank.
Growing of a seedling into a plant is _______ change.
State whether the following is physical or chemical changes.
mixing oil with water —
Give the main differences between physical changes and chemical changes.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
Water is known as a universal solvent. Why?
Making sugar solution is a ____________ change.
