Write the group number using both A/B and 1-18 notation for elements that have the following outer electron configuration:
a 252
b. 3523p3
c. 4s23
d. 5524d105p4

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.

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

What forms when chemical reactions combine pollution with sunlight?