Science review test- More like a unit test :I

Which of these are WHMIS symbols?

• Oxidization

• Bio-hazardous infectious materials

• Flammable

• Compressed gas

• Harmful to the environment

• Explosive

• Health hazard

• Harmful

• Poison

• Harmful to children

Which of these is the WHMIS symbol for flammable

Which of these are HHPS symbols?

Materials that are harmful to the environment are:

• Deodorant

• Hairspray

• Laundry detergent

• Water

• Orange peels

What are methods of separating a colloid?

• Sifting

• Distillation

• Evaporation

• Filtration

• Absorption

• Boiling

• Funnels

• Strainer

• Find the density

• Volume

Which of these are separation methods?

• Sifting

• Evaporation

• Reverse Osmosis

• Rotational Force

• Chemical Seperation

• Stirring

• Nuclear seperation

• Just leave it to the professionals

Which of these are WHMIS symbol names?

• Harmful to the environment

• Flammable/combustable

• Compressed gas

• Exploding bomb

• Corrosion

• Oxidizing

• Health hazard

• Bio-hazardous infectious materials

• Harmful

• Poisonous

What are the four rules of the particle model?

• All matter is made up of tiny particles

• Particles never stop moving

• Particles are attracted to each other, some more than others

• There is space between the particles

• Particles always move faster when around each other

• Particles are always in one of the three states of matter

• Particles can be swallowed by other particles

Does temperature effect solubility? How so or how not?

• Temperature does not effect solubility.

• Temperature effects solubility by making the particles closer together so that other particles cannot slide in between them. No matter what temperature you heat or cool the solvent to, this will always be the same.

• Temperature does effect solubility. When heated, particles spread out and when cooled particles get closer together, either allowing particles to go in between each other or not. The hotter the solvent, the higher the saturation point, vice versa.

• Temperature does not effect solubility because the particles do not react to different temperatures. They kind of just do what they want as the travel around and between each other.

How does temperature effect viscosity of a fluid? Does it? Explain-

• Temperature effects viscosity because the more energy, the more particles will move and the fluid will have a lower viscosity. Vice versa.

• Temperature does not effect the viscosity of a fluid because the viscosity of a fluid depends on the types of particles it is made of.

• Temperature effects the viscosity of a fluid by making the fluid almost a solid if it has any viscosity at all, if it has no viscosity then it will be like water.

What is the definition of density?

• The amount of matter in a given volume

• The mass

• The mass of the solid in liquid form

What happens to a substance as it heats?

• The particles move faster

• The particles spread apart

• The volume increases

• The density decreases

• The particles slow down

• The particle eventually stop moving

How do you know when a solvent has reached its saturation point?

• When there are large buildups of the solute on the bottom of the beaker/container.

• When there are bits of the solute flying around in the solvent.

• A solvent never reaches the saturation point.

• What's a saturation point?

Select the correct classifications of matter.

• All matter is made up of either pure substances or a mixture of substances.

• Matter does not have any classifications.

• Matter is made up of particles, Particles are always moving, they have space between them, they are attracted to each other (some more than others), all matter is made up of tiny particles.

Which of these are pure substances?

• Gold

• Iron

• Calcium

• Lipstick

• Fries

• The Iphone X

Which of these are not pure substances?

• Carbon

• Steel

• Soda

• Apple juice

Which of these are chemical compounds?

• Distilled water

• Water

• Table salt

What are some examples of a suspension?

• Orange juice with pulp

• Shaving cream

• Water

• Tea with leaves in it

What are some examples of a colloid?

• Shaving cream

• Hair gel

• Water

• Soda

• Oxygen

• Some aerosols

What are aqueous solutions

• Solutions with water in them

• Solutions without water

• Solvents that have reached their saturation point