Question

what is pure substances?
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Answer 1

Answer:

the substance that can make with single elements

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Answer 2

$\huge\underline\mathtt{Answer}$

A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen. A pure substance does not have to be of a single element or compound.

Examples :-

• Hydrogen gas.
• Gold metal.
• Sugar (sucrose)
• Baking soda (sodium bicarbonate)
• Ammonia.
• Diamond.
• Copper wire.
• Silicon chip.

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