Question

class 9 sci ch 1 activities Q 1 what do you observe in this active​

Answer 1

Answer:

Activity 1.1 asks us to dissolve some amount of salt in water and observe the change in the volume.But there is no change in the volume of water.When we dissolve salt in water, the particles of salt get into the spaces between the particles of water. ule consists of hydrogen and oxygen atom. Between hydrogen and oxygen, there are large empty spaces.For example You can compare water like a sponge. There are a lot of empty spaces in them. Any smaller substance takes those space without changing the shape or volume of sponge.

Explanation:

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