Which is a polar molecule
a. carbon tetrafluoride
b. trifluoromethane
c. tetrachloroethylene
d. carbon tetrachloride
e. ethylene

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

What is the independent variable in this investigation? mass volume sample number substance density