Achemist requires 0.219 mol na, co, for a reaction. how many grams does this correspond to?
mass:
g na, coz

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons