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

Which best explains why an iceberg floats?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided