Chemistry Unit Review

Given the WHMIS label, it is likely that the liquid in the bottle is….

• corrosive

• flammable

• dangerously reactive

• an oxidizing agent

An industrial inspector spotted this container outside the delivery door. She informed the delivery people that the container should be handled with care because it contained…

• corrosive material

• compressed gas

• oxidizing liquid

• flammable gas

What does the WHMIS symbol stand for?

• Oxidizing material

• Corrosive material

• Harmful/Irritant

• Biohazardous material

After reading the labels on the bottles, the mechanic concludes that as the percentage of H2O2 in water decreases, the solution becomes

• less flammable

• more concentrated

• more corrosive

• less poisonous

A student was able to dissolve 37g of salt in 100mL of water at 20°C. What physical property did the student determine?

• Density

• Conductivity

• Viscosity

• Solubility

When a student mentions the “ability to be shaped into sheets” as a physical property, the student is referring to:

• Viscosity

• Change in state

• Malleability

• Conductivity

Concrete is a lumpy substance produced by adding gravel to cement. The gravel and the cement components are easily distinguishable. The combination of cement and gravel is known a:

• a solution

• an alloy

• a mechanical mixture

• a pure substance

What type of matter is defined as a substance made up of two or more elements chemically combined?

• Colloid

• Solution

• Compound

• Element

Matter that is composed of only one kind of atom is referred to as a/an

• solution

• homogeneous mixture

• heterogeneous mixture

• element

A student made a list of substances used in a science experiment. For each of the substances below write:

1 if the substance used is an element 2 if the substance used is a compound. Record your answer as a four digit number.