How many grams of P2O5 can be produced from 4.6 x 1023 atoms of P?

How do the energy differences between the higher energy levels of an atom compare with the energy difference between the lower energy level of the atom

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point

The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace