Semester 1 Review Part 2

The physical property that describes a substance's ability to dissolve is called

• Melting Point

• Magnetism

• Solubility

• Density

Which statement best describes the states of matter represented in the model below?

• A = liquid, B = solid, C = gas

• A = gas, B = solid, C = liquid

• A = gas, B = liquid, C = solid

• A = liquid, B = gas, C = solid

Which of the following best describes particles in a solid?

• Particles tightly packed toether

• No attractive forces between particles

• Molecules slide past each other; takes the shape of the container

• Fills whatever container it is in.

Based on the law of conservation of mass, which of these is a true statement?

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

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

• Matter is neither lost nor gained in a chemical reaction.

• A certain mass of materials must be present for a reaction to occur.

Which of the following elements will float in water?

• Object A = density of 1.2

• Object B = density of 1.5

• Object C = density of 2.5

• Object D = density of 0.8

If you cut a wooden block in half, each half would have

• Half the density of the original block

• Twice the density of the original block

• The same density of the original block

• No density at all

In the water displacement method for finding volume, you

• Subtract the final volume from the initial volume.

• Add the initial and final volumes.

• Subtract the final volume from the volume of the rock.

• Divide the final volume by the initial volume.

Using the water displacement method, what would be the volume, in cubic centimeters, of the rock in the picture below?

• 30

• 40

• 70

• 10

What would be the density of an item that measured 10 on the triple beam balance, and had the water displacement measure of 2 ml?

• 10

• 5

• 20

• 2

Which statement is true about the items in the picture below?

• The cork has a density greater than 1.

• The rock has a density less than 1.

• The rock has a density greater than 1.

• The cork and rock have densities equal to that of water.