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Draw a Lewis structure of phosphine, and state the hybridisation of the phosphorus atom.

Draw a diagram of PH₃Hybridisation: sp³

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Explain why transition metal complexes are coloured?

Use the following information: [[[[2H2(g) + O2(g) → 2H2O(l) ∆H = −572 kJ mol−1]]]] [[[[2H2(g) + O2(g) → 2H2O(g) ∆H = −484 kJ mol−1]]]] to calculate the enthalpy change for the process: H2O(g) → H2O(l)

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