A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be broken into small particles by hammering. which characteristics of the particles of matter is illustrated by these observations ?​

The strength of these force of attraction is lesser in chalk hence it could be easily broken into small pieces by hammering. But the strength of inter molecular force of attraction is very strong in iron therefore it is not possible to break them into pieces by hammering.

The strength of these force of attraction is lesser in chalk hence it could be easily broken into small pieces by hammering. But the strength of inter molecular force of attraction is very strong in iron therefore it is not possible to break them into pieces by hammering.

Explanation:

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8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.