Can somebody please tell me in what I should do in this question and how to work it out and also explain
what the difference is when it says "excess" or not being excess.
thanks
So i was given these questions to do by my teacher and for 27, not only was she unable to help with the question but even didnt know about shapes of molecules. Can somebody pls teach how I can identify shapes from just looking at an equation plss. Also, my teacher couldnt even do 17.... shes the one who gave out the homework... i really need help
cheers
Can Somebody pls show or explain how the dot and cross diagram works in this question. I've tried drawing in many different ways but this ones a little weird.
cheers
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