What information can be learned about the element chlorine (cl) by looking at the periodic table? select all that apply.
chlorine has 35.45 protons
chlorine has 35.45 neutrons
chlorine has 17 protons
chlorine has 17 electrons

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.

Why is permeable soil best for plants that need a lot of drainage?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.