Matter Quiz

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

Using the data table, determine the identity of a cube of metal that measures 1.2 cm on each side and has a mass of 15.4 grams

• Gold

• Silver

• Nickel

• Zinc

 CO2, 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 into an ice cube.

• Letting the food in your lunch box rot in your locker.

Milk, paint, and mayonnaise are all examples of

• compounds

• elements

• mixtures

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

• can

• cannot

Mixtures can be separated _______

• Chemically

• Physically

compounds can only be separated _________

• Chemically

• Physically

__________changes result in a new substance being formed

• Chemical

• Physical