How many atoms of O2 are in 750 g of H20

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

How many valence electrons are in atom of radon?

Name 3 types of energy you see being used as you look around a classroom