Show:
Solubility
Solutions
Acids/Bases
pH
Miscellaneous
100
A measure of how well a solute can dissolve in a solvent at a given temperature.
Solubility
100
A liquid mixture in which particles can be seen and easily separated by settling or filtration.
Suspension
100
Why are acids in most foods safe to eat?
They are weak.
100
Which is more acidic, a pH of 2 or a pH of 4?
2
100
These taste sour and react with some metals.
Acids
200
If you can add more solute to a solution what is it said to be?
Unsaturated
200
A mixture containing particles that are too small to be seen easily but are large enough to scatter light.
Colloid
200
If something tastes bitter is it an acid or a base?
Base
200
What can you use to find the pH of a substance?
Litmus paper (litmus indicator)
200
When something is 'watered down', like weak coffee or tea what kind of solution is that?
Dilute solution
300
When so much solute is added that no more dissolves the solution is said to be what?
Saturated
300
When a spoonful of salt is put into a large amount of water what part of the solution is the salt?
The Solute
300
This will turn blue litmus paper red.
An Acid
300
If something has a pH of 6 how would you describe that?
Slightly acidic
300
Process that breaks down complex molecules of food into smaller particles.
Digestion
400
How could you increase the solubility of sugar in water?
Heat the water.
400
A mixture that appears uniform throughout and whose particles cannot be easily separated.
Solution
400
Why is an acid considered corrosive?
They 'eat away' other materials
400
What does the pH scale measure?
The concentration of hydrogen atoms.
400
This turns litmus paper blue.
Bases
500
How does pressure affect solubility?
The higher the pressure, the more gas can dissolve.
500
The universal solvent.
Water
500
What color would red litmus paper turn a base?
Blue
500
What is neutralization?
A reaction between an acid and a base.
500
What are the pH levels of your stomach and small intestine? (give two numbers)
Stomach: 2 Small Intestine: 8