a compound is a _____ substance made up of _____
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a compound is a pure substance made up of two or more definite chemicals
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A compound is a substance composed of two or more different types of chemically combined in a fixed proportion.
Explanation:
A compound is a _______ substance made up of _______ .
a)impure; two or more simpler substances
b)soft; only one kind of atoms
c)hard; only one element
d)pure; two or more elements
Correct answer is option 'D'.
A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms.
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