You are given an unknown liquid and asked to determine its identity. you can measure only one physical property. you decide to heat the liquid. you record that the liquid turns to vapor at 100°c. this demonstrates which physical property?
a.
melting point
b.
boiling point
c.
ability to conduct electricity
d.
malleability

Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.