Question

what do you mean by slow and fast changes ​

Answer 1

Answer:

Your answer.

Explanation:

Slow and Fast change.

Slow change : Those type of change which take more time to undergo change is called slow change. For example: Increase in height in humans. Fast change : Those type of change which take less time to undergo change is called fast change. For example : Burning of paper.

Example.

Whereas slow changes take place very slowly and may take hours, days or months to complete. Examples for fast changes: Burning of paper, Burning of a candle. Examples for slow changes: Rusting of iron, Germination of seed, curdling of milk etc.

Answer 2

Answer:

Few reactions takes very fast :-

For example - rusting of iron, weathering of rocks, fermentation of sugar into ethyl alcohol and carbon dioxide etc.

Fast reaction - These are those chemical reactions which takes place at a very fast rate. For example - combustion of LPG gas in kitchen, neutralization reaction etc.

Few reactions takes slow :-

For example rusting of iron or fermentation of sugar into ethyl alcohol and carbon dioxide can take place in several hours or even in several days.

In the same way weathering of rocks takes place in millions of years.