Physical Science I
The _________ is the substance that dissolves in a solvent to form a solution.
What is Solute?
What is the removal of salt from saltwater to produce pure water called?
What is desalination?
What is the most common form of matter in our universe that exists as a gaslike mixture of positively and negatively charged particles?
What is plasma?
Which two naturally occurring sugar plants give us sugar crystals?
What are sugar beets and sugar cane?
Erica is working in the lab. She wants to remove the fine dust particles suspended in a sample of oil. This is the separation method she would most likely use.
What is filtration?
Milk is considered as what type of mixture?
What is Colloid?
Fractional distillation is done in a two-tower structure and the fractional products can then be converted into over 500,000 types of petrochemicals. Name 2 examples of petrochemicals.
What is aspirin, chewing gum, duct tape and fertilizer.
Which WHMIS symbol shape denotes danger?
What is a Hexagon?
This unit is commonly used to measure density.
What is g/cm3?
Petroleum is a natural mixture of hydrocarbons and must be processed to recover useful petroleum products. How may towers are needed and why?
1) The first tower heats up the petroleum into a gas.
2) The second tower separates the petroleum into separate fraction or products.
What are the 4 HHPS (Hazardous Household Product) categories?
1) Poisonous
2) Flammable
3) Explosive
4) Corrosive
Abigail and Isaac, April students of the month, are investigating the properties of the same unknown liquid. Abby pours a large sample of the liquid into a beaker, and Isaac pours a small amount of the liquid into a small cup. which property of the liquid is the same for both Abby's sample and Isaac's sample? A. volume B. mass C. density D. shape.
What is C?
Which state of matter has lots of free space between particles and is compressible?
What is gas?
When 2 substances are placed together __________ occurs if they are attracted to each other.
What is dissolving?
An alloy is made up of two kinds of metals. This alloy is uniform in appearance. It would be considered what type of mixture?
What is in homogeneous mixture?
Frank has a sample of steel that weighs 80 grams. If the density of his sample of steel is 8 g/cm3, this is the sample’s volume.
What is 10 g/cm3?
Its components are visible.
What is heterogenous mixture?
Petroleum is a natural mixture of hydrocarbons and must be processed to recover useful petroleum products. What is this process called?
What is fractional distillation?
This separation method requires a specific apparatus to capture the condensing liquid and it quite costly.
What is distillation?
The speed at which the solute dissolves in a solvent is called the rate of dissolving and can be affected by __________, ____________ and __________.
1) agitation (stirring or shaking)
2) temperature
3) pressure
All particles in a pure substance are the ________.
Same
What state retains a fixed volume and shape?
What is a Solid?
What is the solvent in Air and why?
Nitrogen since it is the larger component in the solution.
The solubility of Salt is 35.7g. What does this mean?
The maximum amount of salt that can be dissolved in 100ml of water.
A solution that contains more solute than would normally dissolve at a certain temperature is called a _______________.
What is a super-saturated solution?
It may be mistaken for a pure substance.
What is homogenous mixture?
This describes the point in time when a solid begins to transition into a liquid.
What is melting point?
Daniel has a sample of pure copper. Its mass is 89.6 grams (g), and its volume is 10 cubic centimeters (cm3). The density of the sample is then....
What is 8.96 g/cm3?
Give an example of an Element and a Compound.
Element - Gold, Iron and Silver
Compound - H2O, Salt and Sugar