Question

6. Enlist any four characteristicsof chemical changes.​

Answer 1

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Some signs that a chemical change occurred include temperature increase, spontaneous change in color after mixing compounds, a marked odor after the reaction begins, formation of a precipitate in the solution and release of bubbles.

Answer 2

Answer:

1) change in shape, colour

2) new product formed

3) irreversible change

Sorry don't know any more.