Which statement is true about binary ionic compounds? a The ratio of cations to anions is always 1 to 1.
The charge of the cation must be identical to the
charge of the anion. (e. g.-2 and -2)
с
lonic compounds are composed of metal anions
and nonmetal cations.
d
The total positive charge must equal the total
negative charge.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.