An element whose atoms have the electron configuration 2-8-18-1 is А
a transition element
B
a noble gas
an alkali metal
D
an alkaline earth metal

What is the mass of each element in a 324.8 sample of co2

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)

Is it safe to take 450mg of diphenhydramine hydrochloride?