Question

If know than help me♤​

Answer 1

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Answer of no.8 (a) is in the attachment..

Ans 8 (b) A pure substance is a substance which have only one kind of particle ! eg- oxygen atom

A pure substance is a substance which have only one kind of particle ! eg- oxygen atomwhereas an impure substance have two or more than two particle.

Ans 9) 5 physical properties on the basis of which metals can be distinguished from non-metals are:

1. Metals are malleable and ductile. They can be hammered into thin sheets and drawn into thin wires.

E.g Gold & Silver

Non metals are brittle they are neither malleable not ductile. They break into small pieces when hammered.

E.g sulphur & phosphorus are brittle

2. Metals are good conductors of

E.g silver, copper , aluminium

Non metals are bad conductors of heat and electricity except diamond & graphite.

E.g sulphur & phosphorus

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Answer 2

Thanks for giving me thanks and follow me v16 also

forver young you too

bye you both