Asample of hydrogen has an initial temperature of 50.°
c. when the temperature is lowered to -5.0° c, the volume of hydrogen becomes 212 cm3 . what was the initial volume of the hydrogen in dm3?

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.