Write the chemical equation that represents the following standard enthalpy changes:
(1) first ionisation energy of calcium
(2) second ionisation energy of manganese
(3) standard enthalpy change of formation of lithium fluoride
(4) first electron affinity of oxygen
(5) second electron affinity of sulfur
(6) lattice enthalpy of calcium chloride
(7) standard enthalpy change of atomisation of bromine
(8) standard enthalpy change of atomisation of sodium
(9) enthalpy of sublimation of magnesium
(10) bond enthalpy of chlorine.