2nd 6 Weeks Review

A table comparing some physical properties of metals and nonmetals is provided. A student examined four samples of matter and recorded some of their properties. Which of the following is most likely a non-metal?

• Sample A is a shiny solid that conducts heat well.

• Sample B is a dull solid and does not conduct heat well.

• Sample C is good at conducting heat and electricity.

• Sample D is a shiny solid.

A rock that has a metallic luster and a red-brown color is most likely made up of which of the following minerals?

• pyrite

• graphite

• hermatite

• calcite

The elements argon, krypton, and xenon are all non-metals. What property would these elements have in common?

• Good conductor of thermal energy

• . Poor conductor of electricity

• Shiny, lustrous surface

• soft and malleable

All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT -

• texture

• conductivity

• luster

• malleability

A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element's ability to conduct electricity. The table shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal?

• hydrogen

• arsenic

• krypton

• copper

The table lists the characteristics of four materials.

Which sample is most likely classified as a metal?

• sample 1

• sample 2

• sample 3

• sample 4

Density is calculated by dividing the mass of a substance by its -

• volume

• temperature

• weight

• length

The density of water is 1 g/cm³. A substance will float if its density is less than that of water. Which of the following substances will float?

• substance 1

• substance 2

• substance 3

• substance 4

The table provided shows the masses and volumes of four rocks. Which rock has the greatest density?

• rock 1

• rock 2

• rock 3

• rock 4

The table provided gives the densities of four transparent materials A student has a clear block of an unknown substance and needs to determine the identity of the substance. The mass of the block is 23.9 grams. The block displaces 8.8 mL of water when dropped in a graduated cylinder. What is the identity of the substance?

• polyethylene

• lucite

• glass

• quartz