S2.1 (The ionic model)

Question 1

Hydroxide

Answer 1

OH(−)

Question 2

Hydrogencarbonate

Answer 2

HCO3(-)

Question 2

Phosphate

Answer 2

PO4(3-)

Question 3

Nitrate

Answer 3

NO3(-)

Question 4

Ammonium

Answer 4

NH4(+)

Question 5

Carbonate

Answer 5

CO3(2-)

Question 6

Sulfate

Answer 6

SO4(2-)

Question 7

Phosphate

Answer 7

PO4(3-)

Question 8

lattice enthalpy

Answer 8

1 mole of an ionic solid lattice ionises to form 1 mole of gaseous ions

Question 9

hydration enthalpy

Answer 9

1 mole of gaseaus ions dissolve sto form 1 mole of aqeous ions