Advisory 2/20 - 2/23

All of these are properties of metals EXCEPT

• malleable

• conductor

• shiny

• brittle

Which element most likely has a shiny luster?

• cobalt

• arsenic

• hydrogen

• carbon

Conductivity is the ability to

• reflect light from a lustrous surface

• transfer thermal and electrical energy

• exist as a solid, liquid, or gas

• be hammered into thin sheets

How should these columns be headed?

• (A)Metals, (B)Metalloids, (C)Nonmetals

• (A)Metals, (B)Nonmetals, (C)Metalloids

• (A)Nonmetals, (B)Metalloids, (C)Metals

• (A)Nonmetals, (B)Metals, (C)Metalloids

Unlike nonmetals, most metals tend to-

• conduct heat and electricity well.

• be gases at room temperature.

• break easily when hammered.

• have less luster and shine.

Density is

• anything that has mass and takes up space

• the volume of a substance divided by its mass

• a procedure used to measure volume

• the mass of a substance divided by its volume

Which expression should be used to calculate the density of an object with a mass of 48g and a volume of 6mL

• 48 ÷ 6

• 6 ÷ 48

• 48 - 6

• 6 × 48

Based on its density, which of the following substances could have a mass of 89g and a volume of 10cm³ ?

• aluminum

• brass

• copper

• gold

A sapphire's density is 3.98g/cm³ . Which of the following could be a sapphire, based on its density?

• Gemstone #!: mass= 1g, volume=1cm³

• Gemstone #2: mass= 7.96g, volume= 2cm³

• Gemstone#3: mass= 50g, volume= 4cm³

• Gemstone #4: mass= 25.6g, volume= 8cm³

A rock with a mass of 70g is dropped into 30 mL of water and the level rises to 35mL. What is the density of the rock in g/mL?

• 5 g/mL

• 35 g/mL

• .07 g/mL

• 14 g/mL