Intro to Matter Test

It is formed when two or more substances are so evenly mixed that you can't see the different parts.

• Homogeneous mixture
• Compound
• Heterogeneous mixture
• Molecule

The fact that matter is not created or destroyed in any chemical or physical change.

• Law of Molecular Structure
• Law of Inertia
• Law of Thermal Reactions
• Law of Conservation  of Mass

A mixture like a salad that you can see the different parts.

• Molecule
• Heterogeneous mixture
• Homogeneous mixture
• Compound

A group of two or more atoms that are held together by chemical bonds.

• Molecule
• Compound
• Element
• Mixture

A substance formed from two or more elements that are chemically combined in a set ratio.

• Heterogeneous mixture
• Homogeneous mixture
• Molecule
• Compound

A measure of the average energy of random motion of particles of matter is

• temperature.
• thermal energy.
• matter.
• density.

The units liter, milliliter, and cubic centimeter are all used to measure the________of an object or substance.

• mass
• weight
• volume
• density

If you drop a marble into a glass of water, the marble will sink because its________is greater than that of water.

• volume
• mass
• weight
• density

How does the density of ice (0.9 g/cm³) compare to the density of liquid water (1.0 g/cm³)?

• The density of the ice is greater.
• The density of the water is greater.
• The densities are equal.
• The densities are incorrect.

If gasoline (0.7 g/cm³) is poured carefully into liquid water (1.0 g/cm³), what will happen?

• Gasoline will float on water because it is less dense.
• Gasoline will  sink to the bottom because it is more dense that water.
• The water and gasoline will mix equally because they have the same densities.
• They will combust.