CBA 2 Review

The capability of a substance to be molded and shaped or hammered into sheets without breaking is known as -

• ductility

• conductivity

• malleability

• luster

The capability of a substance to be stretched into thin wires without breaking is known as -

• malleability

• conductivity

• luster

• ductility

Copper is a common metal. Which of the following properties does this metal most likely have?

• low conductivity, low malleability, and low luster

• high conductivity, high malleability, and low luster

• low conductivity, high malleability, and high luster

• high conductivity, high malleability, and high luster

A student is examining an object in science class. It is solid, does not conduct, malleable but not ductile, and is shiny color. The sample is most likely a -

• nonmetal

• metalloid

• metal

• semi-conductor

A student is examining an object in science class. It is pale yellow, brittle solid, with no shine. The sample is most likely a -

• nonmetal

• metalloid

• metal

• semi-conductor

A company is designing a new cell phone. They need a solid material that conducts electricity and can be made into a thin wire. Which material would best fit their heads?

• nonmetal

• metalloid

• metal

• semi-conductor

A student is testing a silver rock sample with the lab equipment shown in the diagram above. The silver rock completes the circuit and lights the bulb. The student concludes the sample could be which of the following?

1. metal
2. metalloid
3. nonmetal

• 1

• 1, 2

• 1, 2, 3

• 2, 3

When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids.

• dull

• powdery

• shiny

• either shiny or dull

Which of the following list of properties best describes nonmetals?

• brittle, shiny, conductor

• malleable, shiny, conductor

• brittle, dull, insulator

• malleable, dull, insulator

A student needs to find the density of a cube. Each side of the cube measures 3 cm, and the mass of the cube is 12 g.

• 0.4 g/cm3

• 2.25 g/cm3

• 4.0 g/cm3

• 36 g/cm3