AS CHEM

Front

What is a ground state?

Back

Most energetically stable or lowest energy.

Front

What is relative isotopic mass?

Back

Mass of an isotope relative to the unified atomic mass unit.

Front

What is relative atomic mass?

Back

Mass of one mol of atoms relative to 1/12 mass of 1 mol of C-12.

Front

What is a coordinate bond?

Back

Covalent bond where both electrons are provided from one species.

Front

What is enthalpy change of formation?

Back

Enthalpy change when one mole of a compound is formed from its elements in their standard states.

Front

What is enthalpy change of combustion of sucrose?

Back

Enthalpy change when 1 mole of sucrose combusts in excess oxygen.

Front

What is disproportionation?

Back

When a species is both oxidised and reduced.

Front

What is dynamic equilibrium?

Back

Rates of forward and reverse reactions are equal; no change in concentration of reactants and products.

Front

What is a Brønsted–Lowry acid?

Back

A proton donor.

Front

What is a weak Brønsted–Lowry acid?

Back

A proton donor that partially dissociates when aqueous.