1.1- formulae and equations

Ionic Compound

A compound formed by the electrostatic attraction between positive and negative ions.

Spectator Ions

Ions that do not take part in a chemical reaction and remain unchanged.

Oxidation Number

A value representing the number of electrons lost or gained by an atom in a compound.

Covalent Compound

A chemical compound formed by the sharing of electrons between atoms.

Neutralization Reaction

A chemical reaction where an acid and a base react to form water and a salt.

Chemical Equation

A symbolic representation of a chemical reaction, showing the reactants and products.

Balancing Equations

Adjusting the coefficients in a chemical equation to ensure the same number of each type of atom is on both sides.

Charge Balance

The condition where the total positive charge equals the total negative charge in an ionic compound.

Complex Ion

An ion composed of two or more atoms that acts as a single unit with a net charge.

Precipitation Reaction

A chemical reaction that produces a solid from the reaction of two aqueous solutions.