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प्रश्न
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
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उत्तर
Chemical change occurs as a result of rearrangement of atoms between two substances.
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संबंधित प्रश्न
Chemical changes are accompanied by changes in energy.
What are reversible and irreversible changes ? Give one example for each.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
True or false
Change of seasons is a non-periodic change.
Write true or false
A natural change can also be a desirable change.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Water is the universal solvent. Why?
Keeping a stone in sunlight for few hours is ______.
Mention some of the different conditions needed for chemical changes to occur.
