Which compound has more oxygen atoms in it: aluminum sulfite or gold(ill) perchlorate?
aluminum sulfite
gold(III) perchlorate
they have the same number of oxygen atoms
O neither compound contains oxygen atoms

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?