Acids & Bases
The scale used to measure acidity and alkalinity of a substance
pH scale
The substance being dissolved
Solute
An uneven mixture with visible parts
Heterogenous Mixture
Metal rusting is an example of this type of change
Chemical
a substance with a pH below 7
Acid
The substance that DOES the dissolving
Solvent
An evenly mixed mixture
Homogenous mixture
Increasing temperature causes chemical reactions to________________________
Speed up
A solution that is slippery and bitter
Base
What is the universal solvent?
Water
A homogenous mixture containing a solute and solvent
Solution
What would be the best way to separate a mixture of metal pins and plastic beads?
a magnet
If you have heartburn caused by too much stomach acid, how could you fix it?
Consume a base(tums)
Give an example of a substance that does not dissolve in water.
Pepper, oil, etc
Explain how mixtures and pure substances are different
Mixtures can be separated and are not chemically joined
What would be the best way to separate sand and water?
filter paper
What forms when an acid and a base combine?
A neutral substance or a salt forms.
Name the 3 ways to measure pH
pH meter, litmus paper, red cabbage juice
Give 3 examples of separating mixtures
varies
Give one example of a physical change and one example of a chemical change.
varies