Quiz :)
I put like 50 points into this.

How many moles are in 43.9 l of oxygen

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?