Chemistry Matriculation

Matter cannot be lost or gained in a chemical reaction – the total mass of the reactants equals the total mass of the products.

• Law of conservation of mass

• Law of conservation

• Law of mass

• Law of conservation of matter

The sudden formation of a solid when either two solutions are mixed or a gas is bubbled into a solution.

• Precipitation

• Condensation

• Solution

• Suspension

A chemical reaction in which a substance reacts with oxygen – the reaction is exothermic.

• Combustion

• Burning

• Explosion

• Incineration

A combustion reaction which produces a flame.

• Combustion

• Burning

• Explosion

• Incineration

A substance which reduces another substance during a redox reaction.

• Reducing agent

• Oxidising agent

• Redox agent

• Reaction agent

A substance which oxidises another substance during a redox reaction.

• Reducing agent

• Oxidising agent

• Redox agent

• Reaction agent

A substance that conducts electricity but is not chemically changed in the process.

• Electrical conductor

• Chemical conductor

• Physical conductor

• Conductor

The breakdown of an ionic compound, molten or in aqueous solution, by the use of electricity.

• Electrical conductor

• Chemical conductor

• Physical conductor

• Electrolysis

A change in the physical state of a substance or the physical nature of a situation that does not involve a change in the chemical substance(s) present.

• Physical process

• Chemical process

• Chemical change

• Physical change

A change in which a new substance is formed.

• Physical formula

• Chemical formula

• Chemical change

• Physical change