Chemistry Unit Review

How many atoms of carbon are in the compound 4CH₄?

• 2

• 4

• 8

• 16

How many atoms of hydrogen are in the compound NH₃?

• 1

• 3

• 6

• 9

How many atoms of magnesium are in the compound MgO?

• 0

• 1

• 2

• 4

Which of the following is not a property of metals?

• Brittle

• Ductile

• Good conductor

• Shiny, High Luster

Which of the following is not a property of nonmetals?

• Poor conductors

• High Density

• Dull

• Brittle

Where on the periodic table would you typically find metals?

• On the top

• On the right hand side

• On the left hand side

• On the bottom

Which best describes the number of metals and nonmetals?

• There is an equal amount of metals and nonmetals.

• There are more nonmetals than metals.

• There are more metals than nonmetals.

• All elements are classified as metals.

Which of the following is an example of a chemical symbol?

• CH₄ + 2 O₂ → CO₂ + 2 H₂O

• CH₄

• C

Which of the following is an example of a compound?

• CH₄ + 2 O₂ → CO₂ + 2 H₂O

• CH₄

• C

Which of the following is an example of a chemical equation?

• CH₄ + 2 O₂ → CO₂ + 2 H₂O

• CH₄

• C