Chemical Reactions Vocab

Front

A substance with pH > 7; increases hydroxide ions in solution.

Back

base

Front

Change of state (solid, liquid, gas) without altering chemical composition

Back

phase change

Front

Number in front of a chemical formula indicating molecules present.

Back

coefficient

Front

Interaction between molecules causing a chemical change, converting a substance into a new one.

Back

Chemical reaction

Front

Symbol below and right of a character

Back

subscript

Front

A reaction where one atom or ion in a compound is replaced by another.

Back

Single-replacement reactions.

Front

Substance with pH < 7, increases hydrogen ion concentration.

Back

acid

Front

Ionic substance (H3O+) formed when water combines with a hydrogen ion.

Back

hydronium ion

Front

Substances before a chemical reaction; arrow points away from them.

Back

reactant

Front

Chemical reaction where cations switch anions, forming two new compounds.

Back

double-replacement reaction