At what temperature does water become a gas?
a. 0o c
b. 32o c
c. 100o c
d. 212o c

Name the element in group 17, period 2. (periodic table)

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17