1.
Substance that releases hydrogen ions (H⁺) in solution
2.
Substance that releases hydroxide ions (OH⁻) in solution
3.
Scale that measures how acidic or basic a solution is
4.
Substance that changes color to show pH level
5.
Common indicator that turns red in acid and blue in base
6.
Indicator Mixture of indicators that shows a full pH color range
7.
Reaction between an acid and a base forming salt and water
8.
Smallest particle of an element that retains its identity
9.
Positively charged particle in the atom’s nucleus
10.
Neutral particle found in the atom’s nucleus
11.
Negatively charged particle orbiting the nucleus
12.
Atom of the same element with different numbers of neutrons
13.
Adjusting a chemical equation so both sides have equal atoms
14.
Small number showing how many atoms of an element are in a compound
15.
Large number showing how many molecules or units are involved
16.
Chemical reaction that combines substances into a single compound
17.
Reaction that breaks down a compound into simpler parts
18.
Substance made of two or more different elements chemically combined
19.
Rate Speed at which a chemical reaction occurs
20.
Substance that speeds up a reaction without being used up
21.
Amount of substance in a given volume of solution
22.
Ability of a substance to dissolve in another substance
