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A substance composed of two or more elements in a fixed, definite proportion is a.a homogeneous mixture. b.a heterogeneous mixture. c.a compound. d.a solution. e.an alloy.
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A substance composed of two or more elements in a fixed, definite proportion is

a.a homogeneous mixture.
b.a heterogeneous mixture.
c.a compound.
d.a solution.
e.an alloy.

User Ebpa
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1 Answer

5 votes
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 :)
User Patsy
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