Question

1. Using dots (•) and crosses (x) show bonding in; (C = 2, 0 = 16, H = 1)     
   1. Water
   2. Carbon(IV) oxide
2. Why is water a liquid at room temperature while carbon (IV) oxide is a gas at room temperature? 

Answer 1

1.  
   1. H₂0//H-1, O-2.4
      
   2. CO₂//C=2.4, O=2.6
      
2. Water has stronger hydrogen bonds between its molecules unlike carbon(IV)oxide has weak van der waals forces.