rate of reactions

Aqueous

A substance dissolved in water

Atom

The smallest particle of an element

Catalyst

A substance that increases the rate of reaction

Solution

A mixture in which a substance is dissolved

Collision Theory

Idea that particles must collide to react

Composition

Combining reactants to form a single product

Compound

A substance made of two or more types of atoms bonded together

Decomposition

The breakdown of a single reactant into two or more products

Double Displacement

Reaction where ions of two reactants switch places

Electron

A very small subatomic particle with negative charge

Element

A substance made up of only one type of atom

Insoluble

Not easily dissolved

Ion

An atom or molecule with a net charge

Molecule

A group of atoms bonded together

Negative Ion

An atom or molecule with a net negative charge

Oxidation

The loss of electrons

Positive Ion

An atom or molecule with a net positive charge

Precipitate

A solid that settles out of a solution

Product

A substance formed by a chemical reaction

Reactant

A substance that reacts to form new substances

Redox Reaction

A reaction involving the transfer of electrons

Reduction

The gain of electrons

Single Displacement

Substitution of one element for another in a compound

Smelting

Process where metal is extracted from ore