Matter Unit Test Review

What physical property will cause various liquids to separate into layers in a jar?

• Mass

• Weight

• Density

• Dissolving

As we move from left to right, across the Periodic Table, the elements change from _________ to _______

• Non-Metals to Metals

• Metalloids to Metals

• Metals to Non-Metals

• Non-Metals to Metalloids

Which state of matter has the following characteristics?

- Has a definite, fixed volume.

- Has a variable shape.

- Particles are constantly moving and sliding by one another.

• Solid

• Liquid

• Gas

• Plasma

Which State of Matter is being Described:

The particles are not able to move out of their positions relative to one another, but do have small vibrational movements.

• Solid

• Liquid

• Gas

• Plasma

Relate the changes in molecular motion of particles as they change from solid to liquid to gas.

• As the phase changes occur, the freedom of motion of the particles increases.

• As the phase changes occur, the freedom of motion of the particles decreases.

• As the phase changes occur, the freedom of motion of the particles is constant.

What is the basic building block of all pure substances that make up matter in the world?

• atoms

• cells

• cells

• metals

When two or more substances combine, but each keeps its own properties, the new combination is called a(an)

• Element

• Compound

• Mixture

Describe the mass of the reactants and products given the balanced chemical reaction.

• The mass of the products is 2/3 that of the reactants.

• The mass of the reactants equals the mass of the products.

• The mass of the reactants is less than the mass of the products.

• The mass of the reactants is greater than the mass of the products.

If there are 4 grams of reactant, how many grams of product are produced by the chemical reaction?

• 0 grams

• 2 grams

• 4 grams

• 8 grams

Consider the element sodium. It's atomic number is __________ and equals ___________.

• 11; the number of protons

• 12; the number of neutrons

• 23; the sum of protons and neutrons

• 23; the number of electrons