Copy of Grade 8 U1Q2 S8P1a Pure Substances vs. Mixtures (CFA Aug 18-22) (8/29/2025) - Leon Hallingquest | Biblioteka

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A. Oxygen is an element because its most basic unit is a single type of atom.

B. Oxygen is a compound because its most basic unit is a single type of atom.

C. Oxygen is a mixture because its most basic unit contains more than one particle.

D. Oxygen is a compound because its most basic unit contains more than one type of particle.

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Beatriz wants to make a mixture out of her bowl of blueberries. Which of the following would turn her bowl of blueberries into a mixture?

A. adding more blueberries to the bowl

B. adding raspberries to the bowl

C. cutting up the blueberries

D. mashing the blueberries

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A. an element made of carbon and oxygen atoms.

B. a solution made of carbon and oxygen atoms.

C. a compound of carbon and oxygen atoms.

D. a mixture of carbon and oxygen atoms.

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A. The pan is a pure substance with the chemical symbol Fe

B. The pan is a pure substance with the chemical symbol F.

C. The pan is a pure substance with the chemical symbol Ir.

D. The pan is a pure substance with the chemical symbol I.