Question 7 (1 point) ! H Н H:U:H …….. H; CÓ C:H H I, II, and III only I and III only I and II only FI .. HH HH ..... H: C:C:O:H H:C:C::O:H HH El ||| All are possible correct structural formulas Each of the Lewis structures above has the molecular formula C₂H₂O. Which Lewis structures are correct? **** HH IV H H H:C:C::O:H HH Question 8 (2 points) Ammonia has the molecular formula NH3. The total number of valence electrons in an ammonia molecule is: A Ammonia has the molecular formula NH3. The number of lone pairs in an ammonia molecule is: A Ammonia has the molecular formula NH3. The number of single bonds in an ammonia molecule is: Ammonia has the molecular formula NH3. The number of double bonds in an ammonia molecule is: A/
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