Ionic bonding & structure questions
Assignment: Questions on Topic 4: Ionic bonding & structure
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State the formula of:
i. sodium carbonate
ii. aluminium phosphate
iii. calcium hydrogencarbonate
iv. chromium(III) hydroxide
v. copper(I) nitrate
vi. ammonium sulfate
vii. caesium iodide
The formula of an oxide of iron is FeO. State the formula of (a) the nitrate and (b) the chloride of iron with the same oxidation state.
Use sodium chloride as an example to explain what is meant by ionic bonding.
Explain why the oxide of sodium, Na2O, is ionic whereas the oxide of chlorine, Cl2O, is covalent.
Explain why aluminium fluoride and aluminium oxide are ionic whereas aluminium chloride is covalent.
Explain why the lattice enthalpy of calcium oxide, CaO is lower than the lattice enthalpy of magnesium oxide, MgO.