2. Mendeleyev had two big realizations in his quest to make sense of the elements. What were they?

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .