2.1

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Cation

Back (Answer)

When an atom loses electrons and becomes a positive ion

Front (Question)

Anion

Back (Answer)

When an atom gains electrons and becomes a negative ion

Front (Question)

Why is the mass of a proton/neutron 1u

Back (Answer)

The mass of carbon-12 is exactly 12u (Atomic mass units)

Front (Question)

Relative isotopic mass

Back (Answer)

Mass of an isotope compared to 1/12th the mass of carbon-12

Front (Question)

Relative Atomic mass

Back (Answer)

Weighted mean mass of an atom of an element compared to 1/12th the mass of carbon-12

Front (Question)

Ionise

Back (Answer)

Give something a charge (usually knocking off an electron)

Front (Question)

Relative formula mass

Back (Answer)

Mass of one formula unit (empirical formula) compared to 1/12th mass of carbon-12

Front (Question)

Relative molecular mass

Back (Answer)

Mass of a molecule compared to the mass of carbon-12

Front (Question)

Moles

Back (Answer)

What amounts of substances are measured in

#10

Front (Question)

Avogadro’s constant

Back (Answer)

6.02*10^23 particles in a mole Number of atoms in 12g of carbon-12

#11

Front (Question)

Molar mass

Back (Answer)

Mass per mole of a substance

#12

Front (Question)

What is molar mass measured in

Back (Answer)

gmol -1 (Grams per mole)

#13

Front (Question)

Equation for no. of moles

Back (Answer)

Mass (g) / molar mass (gmol -1)

#14

Front (Question)

Empirical formula

Back (Answer)

Simplest whole number ration of atoms of an element in a compound

#15

Front (Question)

What is 1 mole of gas at RTP equal to

Back (Answer)

24 dm3 mol-1 = 24, 000 cm3

#16

Front (Question)

Room temperature

Back (Answer)

25 degrees

#17

Front (Question)

Room pressure

Back (Answer)

1 atm/ 101 kPa

#18

Front (Question)

Molecular formula

Back (Answer)

The number and type of atoms of each element in a molecule

#19

Front (Question)

Dissociation

Back (Answer)

An acid releases a proton/ H+ ion when added to water Exists as a reversible reaction

#20

Front (Question)

Strong acids

Back (Answer)

Completely dissociate All of their acidic protons are released HCl —> H+ and Cl-

#21

Front (Question)

Weak acids

Back (Answer)

Only partially dissociate in water Only some of the acidic protons are released CH3COOH —> H+ and CH3COO-

#22

Front (Question)

Are organic acids strong or weak

Back (Answer)

Weak

#23

Front (Question)

Alkali

Back (Answer)

A base that dissolves in water forming OH- ions

#24

Front (Question)

Acid

Back (Answer)

Substances that releases H+ ions when it dissolves in water