Question

Change which occurs on mixing two substances but can be reversed. ( give one example )

Answer 1

Answer:

Explanation:

The change which occurs on mixing two substances but can be reversed is known as physical change.

A common example of physical change is water changing into ice

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Answer 2

Changes occur on mixing two substances but can be reversed is known as PHYSICAL CHANGES.

PHYSICAL CHANGE -

• The reactions involve the change in the physical appearance of the substance.
• There may be changes in the state of the substance such as solid, gas, and liquid.
• The reaction does not require a change in the concentration of the reactants and products.
• Example: When the candle is heated, the wax melts to a liquid form. On cooling the candle wax, it becomes solid candle wax.