Question

all the characteristics of chemical change with reactions class 10​

Answer 1

Characteristics of chemical changes

1) The identity of the substance is completely lost.

2) The change is generally permanent.

3) The change is generally accompanied by heat.

4) The change cannot be reversed.

For ex:-

2Mg+O^2 gives 2MgO when heated

Answer 2

The Characteristics of chemical change are :-

• Formation of gas
• Formation of Precipitate
• Change in Colour
• Change in Temperature
• Change in State

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