What similarities and differences do you see between these models of atoms?

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)

The boiling point of liquids is very high what does it indicate

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?