Multiple Choice
In the classification of matter, an atom combines with other atoms to form a molecule; by analogy, a letter combines with other letters to form a(n) _____.
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3. Matter and Energy
Classification of Matter
Multiple Choice
In the classification of matter, what term describes a pure substance made of only one kind of atom?
A
Heterogeneous mixture
B
Compound
C
Element
D
Homogeneous mixture
Verified step by step guidance1
Understand the classification of matter, which divides substances into pure substances and mixtures.
Recall that a pure substance contains only one type of particle, either atoms or molecules, uniformly throughout.
Identify that a compound is a pure substance made of two or more different atoms chemically bonded together.
Recognize that a mixture contains two or more substances physically combined, which can be homogeneous (uniform) or heterogeneous (non-uniform).
Conclude that a pure substance made of only one kind of atom is called an element.
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