An oxide of phosphorus contains 56.4% phosphorus and 43.6% oxygen. it's relative molecular mass is 220. find both the empirical and the molecular formula of the oxide'

answer: they produce more slow than unicellular organisms.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.