Vocabulary
(Acids or Bases) taste sour, sting to the touch, and turn litmus paper red.
Acids
The strength of an acid is __________________.
Acidity
A substance that forms ions when dissolved is a(n) _____________________.
Electrolyte
Litmus paper is an example of an acid-base __________________.
Indicator
The strength of a base __________________.
Alkalinity
How can a scientist test the acidity of a solution?
Use litmus paper to see if it turns red
Compounds that give off hydroxide ions (OH-) when dissolved in water are called ________________________.
Bases
Highly acidic solutions have a (high or low) pH.
An ___________ is an atom or molecule that has an electric charge.
Ion
Bases turn litmus paper _________________.
Blue
Very alkaline solutions have a (low or high) pH.
High
Why do most salts have high melting points?
They are ionic compounds
The _______________________ measures the strength of an acid.
pH scale
______________ is when acids and bases react to form salt and water.
Neutralization
What are atoms or molecules that have gained or lost one or more electrons?
Ions