If a sample of Na3PO4 contains 9 moles of sodium, how many moles of Na3PO4 are there?

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above

the dependant variable is spilled water

the independent is the heat

2b2t

explanation:

2b2t