NCEA L3 Chemistry Practice Questions - NCEA Level 3 Chemistry (New Zealand, Year 13) Exam

Which equation represents the process whose enthalpy change is the first ionisation energy of magnesium?

Mg(s) -> Mg+(g) + e- Mg(g) -> Mg+(g) + e- Mg(g) -> Mg2+(g) + 2e- Mg+(g) -> Mg2+(g) + e-

Correct Answer:

Mg(g) -> Mg+(g) + e-

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