5. Which is the solubility product expression for Na3PO4( s)?
[Na +3] / [PO43-]
[Na] +3[PO4] 3 -
[Na +] [PO43-]
[Na] +3/[PO4] 3 -
s
and

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)