Hetero or Homogenous?
Fruit Salad
What is heterogeneous
Define a homogenous mixture
What is a mixture where you cannot distinguish all parts
Define a heterogeneous mixture
What is a mixture where you can distinguish all parts
What is the universal solvent?
What is water
Why do we separate mixtures? Give a real-life example
What is: People have been separating mixtures ever since Ancient Times, industrious humans have separated mixtures in order to obtain the specific substances that they need. One example of this is extracting metal from ore in order to make tools and weapons.
Lemonade
What is homogenous
Another name for a homogenous mixture
What is a solution
Another name for a heterogeneous mixture
What is a mechanical mixture
Why is water considered the universal solvent?
what is more things dissolve in water than ANY other solvent
What fish was important to Indigenous Canadians and what did they extract from it?
Ooligans. They extracted the oil which was a high-energy food source.
An unopened bottle of pop
An opened bottle of pop
What is:
Homogenous
Heterogeneous
Homogenous mixtures look the same throughout, even under a ????
What is a microscope
A heterogeneous mixture in which the particles settle slowly after mixing is called a??
What is a suspension
What does "like dissolves like" mean?
"Like dissolves like" is an expression used by chemists to remember how some solvents work. It refers to "polar" and "nonpolar" solvents and solutes.
Polar substances WILL dissolve in Polar substances. Non-polar substances WILL dissolve in nonpolar substances. Non-polar substances WILL NOT dissolve in polar substances.
Where do we get table salt from and how do we extract it?
What is the ocean, what is evaporation.
Air
What is homogenous *solution of gasses (nitrogen, oxygen and other gases)*
The ??? is the part of the solution that is dissolved in another substance, and a ??? is the part of a solution that dissolves another substance.
What is a solute and solvent
Do you ever notice that a lot of containers say “shake well before using” This could be an indication that it is a????
What is a suspension
Give an example of a "like dissolves like" and opposite
What is water dissolves salt
What is water does not dissolve oil
Name ALL separation methods
Filtration, magnetism, distillation, evaporation and density
Gold
What is TRICK QUESTION pure substance
Properties of Solutions (name 1)
What is:
If the mixture is a solution you will be able to only see one type of matter, even under a microscope.
Shine a light through the mixture. Solutions contain no un-dissolved particles and do not scatter light. Therefore, you will not see a beam running through the solution.
This is a common agent used in many things like mayonnaise and salad dressings, called an (???) agent. What does it do?
What is an emulsifying agent. It allows the parts of a suspension to remain suspended for longer.
Are polar substances soluble in water?
Molecules that have partially charged positive and negative areas are polar. Because water molecules are polar, water can dissolve many other polar substances.
How were our crystals extracted in our supersaturated solution?
What is by stirring the sugar in hot water instead of room temperature or cold water, the sugar is dissolved faster in the fast-moving (heated) water molecules. As the water cools, the huge amount of sugar particles remains in solution (a supersaturated solution) and it contains more sugar than can stay in the liquid. The sugar falls out of the solution as a precipitate (particles). These connect with other sugar particles, and a crystal begins to grow.