Phys Sci Matter Review

An unknown solid is placed on a scale and has a mass of 2.5 grams. The solid then displaces 35 mL of water in a graduated cylinder. Find the unknown solid’s density.

• 0.071 g/mL

• 14 g/mL

• 37.5 g/mL

• 90 g/mL

Jenny blends together water, lemon juice, and sugar in a pitcher. She has made a

• compound

• pure substance

• homogenous mixture

• heterogeneous mixture

Milk, paint, and mayonnaise are all examples of

• compounds

• elements

• mixtures

The law of conservation of mass states that matter

• can be created or destroyed

• cannot be created or destroyed

• can be created but not destroyed

• cannot be created but can be destroyed

Mixtures can be separated

• chemically

• physically

• both chemically and physically

• neither chemically nor physically

Compounds can only be separated

• chemically

• physically

• both chemically and physically

• neither chemically nor physically

Melting point, viscosity, and density are all examples of

• physical properties

• chemical properties

• both physical and chemical properties

• neither physical nor chemical properties

What is the mass of a cube measuring 3 cm on each side that has a density of 8.1 g/cm³?

• 27.3 g

• 72.9 g

• 81 g

• 243 g

Classify the following as a chemical change (C) or a physical change (P): Burning wood.

• Chemical change (C)

• Physical change (P)

• Both (C) and (P)

• Neither (C) nor (P)

Classify the following as a chemical change (C) or a physical change (P): Ice cube melting.

• Chemical change (C)

• Physical change (P)

• Both (C) and (P)

• Neither (C) nor (P)