Question

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Answer 1

Answer:

i) Solid to liquid is melting

ii)Burning is chemical change

iii)Sodium is Na

iv)Solid to gas is sublimation

v)Silver is pure substance

vi)Mendeleev created the periodic table

vii) Cotton fibre is plant fibre

viii)Brass is a mixture

ix)Silk is animal fibre

x) Gas to liquid is condensation

Explanation:

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