Identify four unusual properties of water that are a direct result of hydrogen bonding, and explain each in terms of hydrogen bonding.

The four unusual properties of water that are in direct result of hydrogen bonding are:
1) high boiling point and freezing point. There hydrogen bond in water makes it very slow to boil and freeze. 

2) has the highest surface tension among all the liquid.

3) high heat of vaporization. Has a heat of vaporization of 41 kJ/mol. 

4) strong intermolecular forces makes water have low vapor pressure, low viscocity, and highly cohesive.

All this below

High boiling and melting points: Hydrogen bonds increase the amount of energy required for phase changes to occur, thereby raising the boiling and melting points.

High specific heat: Hydrogen bonds increase the amount of energy required for molecules to increase in speed, thereby raising the specific heat.

Lower density as a solid than as a liquid: Hydrogen bonds increase the volume of the solid by holding molecules apart, thereby decreasing the density.

High surface tension: Hydrogen bonds produce strong intermolecular  attractions, which increase surface tension.

2 C4H10 + 13 O2 = 8 CO2 + 10 H2O

2 moles C4H10 8 moles CO2
0.425 moles moles CO2

moles CO2 = 0.425 * 8 / 2

moles CO2 = 3.4 / 2 => 1.7 moles