H2O, NH3, CH4, CO24.
How many single bonds are there in this molecule?
How many multiple bonds (double and/or triple) are there in this molecule?

Question

H2O, NH3, CH4, CO24.
How many single bonds are there in this molecule?
How many multiple bonds (double and/or triple) are there in this molecule?

anonymous · Answer

I made the Lewis Dot Structures, but I'm confused now

anonymous · Answer

what do you mean CO24?

anonymous · Answer

Sorry! Just CO2

anonymous · Answer

draw them like this:|dw:1368494405744:dw|

anonymous · Answer

you draw the others

anonymous · Answer

How do I know how many single or multiple bonds there are though?

anonymous · Answer

For H2O are there 2 single bonds?

anonymous · Answer

carbon always has 4 bonds
oxygen always has 2 bonds
hydrogen always has 1 bond
nitrogen always has 3 bonds

anonymous · Answer

and no multiple?

anonymous · Answer

yes, you are right

anonymous · Answer

but how do i know if it's single or multiple......

anonymous · Answer

|dw:1368494552907:dw|
if this is CO2, you need two more bonds on the carbon and one more bond on each oxygen
how can you do that?