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AnnyKZ [126]
3 years ago
9

A substance composed of two or more elements in a fixed, definite proportion is

Chemistry
1 answer:
maksim [4K]3 years ago
3 0
A compound

(i think) because it consists of two + elements, whose ratios are shown clearly in the chemical formula, meaning it has a fixed, definite proportion. 

hope that helps :)
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3 0
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HURRY
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