S8 + 12O2 = 8SO3 If it takes 36.72 grams of O2 to begin the reaction, how many grams of SO3 will be formed?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

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

What properties would have caused early researchers to name hydrogen "inflammable air”