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if a material has 3 elements but not joined in a fixed proportion, it is a.

a. mixture
b. compound
c. atom
d. none of the above

if I understand this a mixture is 3 elements I'm a fixed proportion

compound is 2 or more elements in a fixed proportion

atom is the smallest element.

thought it was d. got it wrong on qui

Answer :

AL2006
If the proportions are fixed, it's probably a compound, but not necessarily.

If the proportions are NOT fixed, it's a mixture.

The number of components doesn't matter.

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