Chemical Substances
Two or more non-metal atoms joined by covalent bonds
Molecule
An element or compound that undergoes a chemical reaction
Reactant
A way to represent a chemical reaction that uses chemical formulas and symbols
Chemical equation
A chemical that produces hydroxide ions when dissolved in water; a solution with a pH greater than 14.
Base
Bonus Question: Combustion that produces carbon (soot) and carbon monoxide in addition to carbon dioxide and water
Incomplete combustion
An atom or group of atoms with a positive charge or a negative charge
Ion
An element or compound that is formed in a chemical reaction
Product
A number placed in front of a chemical formula in a balanced equation to show how many atoms, molecules, or ions are involved
Coefficient
A chemical that produces hydrogen ions when dissolved in water; a solution with a pH less than 7
Acid
A compound composed of oppositely charged ions of a metal and non-metal held together with ionic bonds
Ionic compound
A compound formed of atoms of two or more elements that share electrons
Molecular compound
A chemical reaction in which a compound breaks down into two or more simpler compounds or elements
Decomposition
A chemical reaction in which two or more elements combine to produce a compound
Formation reaction
A numerical scale that is used for identifying a solution as acidic, basic, or neutral
pH scale
A measure of how much area of an object is exposed
Surface area
A compound composed of atoms of two different elements, usually two non-metals, that are joined together with covalent bonds
Binary molecular compound
A chemical reaction in which the positive ions of two different compounds exchange places, resulting in the formation of two new compounds
Double replacement reaction
A process in which pure substances undergo a change that results in the formation of different pure substances with properties different from the original substances
Chemical reaction
A chemical that is a characteristics colour when in the presence of an acid or base
Acid-base indicator
The speed at which reactants are converted to products in a chemical reaction
Reaction rate
A compound composed of ions of two different elements: a positively charged metal ion and a negatively charged non-metal ion
Binary ionic compound
A chemical reaction in which a compound or element reacts with oxygen to form compounds called oxides
Combustion reaction
A chemical reaction in which one element takes the place of another element in a compound
Single replacement reaction
A chemical reaction between an acid and a base that results in production of a salt and water
Neutralization
A substance that increases the rate of a chemical reaction without being used up or changed after the reaction has taken place
Catalyst