Chemistry REview Part I

All of the following are elements EXCEPT:

• C

• Co

• CO

• Cl₂

Which of the following is a compound?

• Gold (Au)

• Water (H₂O)

• Hydrogen (H₂)

• Oxygen (O₂)

Which of the following will form a heterogeneous mixture?

• Kool Aid powder and water

• Salt and water

• Sugar and water

• Oil and water

Fruit Loops cereal is an example of:

• A heterogeneous mixture

• An element

• A compound

• A homogeneous mixture

What state(s) of matter has/have definite shape?

• liquid and gas

• solid only

• liquid only

• solid and liquid

What state(s) of matter has/have definite volume?

• solid only

• liquid only

• solid and liquid

• liquid and gas

What physical states take the shape of their container?

• solid and liquid

• liquid and gas

• solid and gas

Which of the following elements is a metal?

• Oxygen

• Fluorine

• Helium

• Sodium

Which of the following is a nonmetal?

• hydrogen

• nickel

• barium

• silicon

What is the atomic mass of Ne?

• 30.180

• 10

• 20.180

• 10.180