Question

1-The long hydrocarbon tails of soap molecules are:

a-hydrophobic and attracted to water

b- hydrophilic and attract to oils

c- hydrophilic and attract to water

d- hydrophobic and attract to oils

2- A balloon originally had a volume of 4.39 L at 44 C and a pressure of 729 torr. The balloon must be cooled to... C to reduce its volume to 3.78 L (at constant pressure).

a- 0.00 C

b-273 C

c- 72.9 C

d- 38.0 C

Answer 1