Matter

An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the ice is heated

• The molecules will begin to move slower.

• The molecules will begin to move faster

• The molecules will begin to increase in density

• The molecules will begin to condense in the air.

A solid is crushed into a powder. Is it physical or chemical change?

• physical change

• chemical change

Define a Chemical Property

• A property which depends on the objects size or matter

• A property or behavior of a substance which undergoes a chemical change or reaction.

• A property of matter not involving in its manifestation a chemical change

• A property which makes the object smell or taste different.

Which of the following is a sign that a chemical reaction has occurred?

• change in shape

• melting

• burning

• dissolve

Which of the following is an example of a physical property?

• temprature

• density

• reactivity

• toxicity

• color

Evaporation refers to the change of state from a 

• solid to gas

• gas to liquid

• liquid to gas

• gas to plasma

All matter is made of atoms and molecules that are

• static

• moving all the time

what is the effect of increase in pressure on volume of gas at constant temprature?

• volume remains constant

• volume decreases

• volume increases

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 373

• 0

• 273

• 100

Which of the following would increase the (gas) pressure of a system?

• Increase the Temperature

• Pump in more gas

• decrease volume

• all of these