Can someone please check over my science homework?

I

I?BOOBOOSTEWART<33333

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I really need a good mark. If I have done it wrong please give advice. Thanks!



1. Complete the following table.(6 marks)

The first one is done for you as an example

Name of compound
CationAnionFormula
beryllium fluoride
Be2+F-BeF2
(a) barium bromide
Ba2+.Br-.BaBr2
(b) sodium nitride
Na+.N3-.Na3N
(c) calcium sulfide
Ca2+.S2-.CaS

(d) aluminum chloride
Al3+.Cl-.AlCl3
(e) lithium oxide
Li+.O2-.Li2O
(f) magnesium nitrideMg2+.N3-.Mg3N2



2. Identify whether each name or formula represents an ionic or molecular substance and then name the compound or give the formula. (5 marks)

(a) sodium sulfide Na2S Ionic

(b) PCl3 phosphorus trichloride Molecular

(c) nitrogen dioxide NO2 Molecular

(d) zinc oxide ZnO Ionic


(e) MgI2 magnesium iodide Ionic
 
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