What is true of a molecule? a) each molecule of a compound have different properties b) all molecules of a compound have the same properties c) all molecules of a compound have 1 type of atom d) each atom of a molecule is the same

What is the formula that this ionic compounds could form sr2+p3-o2-

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.