WHMIS
Classification of Matter
Concentration
Solubility
100
Why are WHMIS symbols important?
Allows you to know how to handle, store and dispose materials.
100
What can Matter be classified as?
Pure Substance VS Mixture
100
What makes a solution concentrated?
Large amounts of solute inside a solvent.
100
What two parts make a solution? Provide an example.
Solute - the substance being dissolved
Example: sugar, salt
Solvent - the substance that does the dissolving ( usually a liquid)
Example: Water
200
What does WHMIS stand for?
Workplace Hazardous Materials Information System
200
Provide two examples of a mixture
Answers may vary
200
Which of the following is the most concentrated?
Most to the right
200
What does solubility mean?
The maximum amount of solute that can be dissolved in a specific amount of solvent at a given temperature.
300
What is this WHMIS symbol? What does it mean?
Biohazardous - Risk to human health and enviornment.
300
What is a pure substance? Provide an example.
Anything that is made up of one type of matter. Example: Gold, Sugar, Salt, Aluminum
300
How do you write out the concentration of this solution?
5g of salt
15 mL of water
5g / 15 mL
300
What does saturated and unsaturated mean?
Saturated - A solution in which no more solute can dissolve at a given temperature.
Unsaturated - More solute can be dissolved in the solution at a given temperature.
400
What is this WHMIS symbol? What does it mean and where would you see it?
Corrosion - Corrosion to eyes, skin and/or metal. Harm or destroy skin layer. Can be found on strong acids and bases. Example: Sulfuric Acid and Bleach
400
What is does it mean by homogenous and heterogenous? Provide examples of each.
Homogenous - Even distribution throughout, different layer can not be seen. Example: Apple Juice
Heterogenous - Different layers or parts can be easily spotted. Example: Salad
400
Which solution is more concentrated:
1. 60 g / 100 mL
2. 30 g/ 100 mL
60g / 100mL
400
List from most to least soluble. 
AgNO3 > NaNO3 > NaCl > Na3PO4 > CaSO4 > AgCl
500
Pick at least 3 WHMIS symbols to describe. Name of symbol, meaning and example.
Answers will Vary
500
Where would "mechanical mixtures" and "solutions" fit under the classification? Provide examples.
Mechanical Mixture - Heterogenous
Solution - Homogenous
Examples will vary
500
Which solution is more concentrated?
1. 300 mL of water with 60 g of sugar
2. 150 mL of water with 35 g of sugar
150 mL of water with 35 g of sugar
500
How does the saturation point connect to the solubility of a solution? Be sure to mention saturated and unsaturated in your answer.
The saturation point of a solution measures the solubility of the solution. When a solution reaches its saturation point, it becomes saturated. Before a solution meets its saturation point, it is considered unsaturated and more solute can be dissolved.