Matter and Energy

If you fill a bottle with salt water from the ocean, the salt water is a

• Pure substance; element

• Pure substance; compound

• Homogeneous mixture

• Heterogenous mixture

Which of the following is NOT a characteristic of liquids?

• Fixed volume

• Indefinite Shape

• Particles freely move past one another

• Less energy than solids

Water is solid below

• 0 degrees C

• 100 degrees C

• 32 degrees C

• 13 degrees C

Sublimation represents a change from a ___ to a ___.

• gas; solid

• vapor; liquid

• solid; liquid

• solid; gas

A change of state from a gas to a solid is called

True / False: A compound can be chemically separated into its various elements.

• True

• False

Zinc is a

• Metal

• Nonmetal

• Semimetal

True / False: A mixture can be physically separated into pure substances.

• True

• False

Na is the symbol for which of the following elements?

• Neon

• Nadium

• Sodium

• Scandium

He is the chemical symbol for