Multiple Choice
In the classification of matter, how is milk best classified?
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3. Matter and Energy
Classification of Matter
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In the classification of matter, pizza is best described as which type of substance?
A
Compound
B
Heterogeneous mixture
C
Homogeneous mixture
D
Element
Verified step by step guidance1
Recall the main categories in the classification of matter: elements, compounds, homogeneous mixtures, and heterogeneous mixtures.
Understand that an element consists of only one type of atom, and a compound consists of two or more elements chemically combined in a fixed ratio.
Recognize that a homogeneous mixture has a uniform composition throughout, meaning you cannot distinguish its different parts easily.
Know that a heterogeneous mixture has visibly different components or phases that can be physically separated.
Apply these definitions to pizza: since pizza has different ingredients (like crust, cheese, sauce, toppings) that are not uniformly distributed and can be physically separated, it is best classified as a heterogeneous mixture.
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