Department of Motor Vehicles
Chemical Changes
Physical Changes
Sig Figs
Vocab, Vocab, vocab
100

This equation allows us to solve density problems.

What is D=m/V

100

This type of chemical change is often quite visually appealing and always shocking to the observer.

What is a color change?

100

one example of a physical change is this term, for a solid becoming a liquid

What is melting?

100

The number of significant figures in 

101340000

What is 5?

100

This is the name of the chemicals you use during a chemical reaction.

What is reactants?

200

This is the most common unit(s) density is measured in.

What is g/cm3 or g /mL?

200

This type of chemical change is what happens with the combustion of one material. 

What is burning?

200

This type of physical change involves taking a big piece of something and making it smaller.

What is cutting or grinding?

200

8493200475

What is 10?

200

This is a change in which one or more substances are converted into different substances.

What is a chemical change?

300

This is required of all units in a density problem in order to successfully solve it.

What is matching units?

300

The fundamental thing that changes during a chemical changes.

What is a chemical bond?

300

This is a change in a substance that does not involve changing the identity of that substance.

What is a physical change?

300

0.00029

What is 2?

300

This type of matter is composed of two or things that are physically in contact.

What is a mixture?

400

Use the equation to solve for V

What is V=m/D?

400

This indicator of a chemical change happens at room temperature. But, if it happened at very high or very low temperatures would be a physical change.

What is the formation of a solid or a gas?

400

These are the temperatures water boils and freezes. Answers only accepted in Celsius.

What is 0 C and 100 C respectively?
400

30200000

What is 3?

400

This type of mixture is not uniform throughout.

What is a heterogenous mixture?

500

Copper has a density of 8.94 g/cm3 . What is the mass of a copper cube with a volume of 15 mL?

What is 134 g?

500

This happens when two molecules touch each other and combine to from a more stable molecule.

What is a chemical reaction?

500

The process of the shape or volume of a substance changing at high or low temperature.

What is a phase change?

500

30200000.

What is 8?

500

Another name for a homogenous mixture.

What is a solution?