Answer:
1.) Write 2 points of difference between water molecule and hydrogen molecule.
• Water molecule associates through hydrogen bonding while hydrogen molecule associates through weak vanderwaal's forces of attraction.
• Water molecule is heavier with greater molecular mass [ 18 grams ] than hydrogen molecule [ 2 grams ].
2.) Differentiate between homogeneous and heterogeneous mixture.
• Homogeneous mixture is a mixture where molecules combine uniformly and adhesive forces are greater than cohesive forces while heterogeneous mixture is a mixture where molecules are non-uniformly combined and cohesive forces are greater than adhesive forces.