TYPES OF MIXTURES
What mixture has particles that can be seen and settle out?
Suspension
When no more solute can dissolve, the solution is what?
Saturated
What do acids produce in water?
hydrogen ions
What does the pH scale measure?
hydrogen ion concentration
What type of reaction happens between an acid and a base?
neutralization
What mixture looks the same throughout and cannot be easily separated?
Solution
What do you call a solution with more solute than it should hold?
Supersaturated
What do bases produce in water?
hydroxide ions
What pH is neutral?
7
What two products are made in neutralization?
Water and Salt
What mixture has particles that scatter light but are not easily seen?
Colloid
What is one way to increase how much sugar dissolves in water?
Heat the Water
What do acids turn blue litmus paper into?
Which is more acidic: a lemon (pH 2) or an apple (pH 3)?
Lemon
What is an example of how bases are used in everyday life?
soaps or detergents
In a solution, which part is present in the smaller amount?
Solute
What are two other ways to speed up dissolving?
stirring and crushing
What do bases feel like and taste like?
slippery and bitter
Compared to saliva, stomach acid has a higher or lower pH?
lower
Why are pH changes important in digestion?
enzymes work best at different pH levels
What is the substance that does the dissolving called?
Solvent
When sugar is mixed into water, what is the sugar called?
Solute
What word describes acids because they “eat away” materials?
What does a high pH tell you about a substance?
It is Basic
What happens to pH when vinegar mixes with ammonia?
it moves closer to 7