Matter Quiz

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

• compound

• homogeneous mixture

• pure substance

• heterogeneous mixture

CO_2, NaCl, and HCl may all be classified as

• elements

• compounds

• homogenous mixtures

• heterogeneous mixtures

Which of the following is not an example of a physical change?

• Cutting a piece of string in half

• Crumpling a piece of paper into a ball

• freezing water in an ice cube

• letting food in your lunchbox rot in your locker

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 density of the solid. d=m/v

• 0.071 g/mL

• 37.5 g/mL

• 14 g/mL

• 90 g/mL

Milk, paint, and mayonnaise are all examples of

• compounds

• elements

• mixtures

The law of conservation of matter states that matter______be created or destroyed, even after a chemical change.

• can

• cannot

_____________changes result in a new substance being formed

• Physical

• Chemical

Melting point, viscosity, and density are all examples of _______ properties.

• physical

• chemical

Chopping wood is a

• physical change

• chemical change

Burning wood is a

• physical change

• chemical change