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I think it's to do with dative covalent bonding?

Chlo.Harr

How do you answer 8c ...I am hoping I am not being too stupid
ImageUploadedByStudent Room1446302532.558451.jpg

ImageUploadedByStudent Room1446302571.553955.jpg

Is have that right (might not be right shape?)

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Reply 1

Pigster

It'll have a similar shape to water.

I'd suggest square brackets around the whole thing and a negative charge shown. I'd consider a third symbol to show the extra electron, but it isn't necessary.

Otherwise, the dot and cross is correct.

It's not dative, though.