Multiple Choice
Which of the following best describes Kool-Aid when it is fully dissolved in water?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following best describes pizza in terms of the classification of matter?
A
Pizza is an element.
B
Pizza is a heterogeneous mixture.
C
Pizza is a compound.
D
Pizza is a pure substance.
Verified step by step guidance1
Recall the basic classifications of matter: elements, compounds, pure substances, and mixtures.
An element is a substance made of only one type of atom, and a compound is a substance made of two or more elements chemically combined in a fixed ratio.
A pure substance refers to either an element or a compound with uniform and definite composition throughout.
A mixture consists of two or more substances physically combined, and a heterogeneous mixture has visibly different components or phases.
Since pizza contains various ingredients like dough, cheese, sauce, and toppings that are physically combined and not uniform throughout, it is best classified as a heterogeneous mixture.
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