What is the mass of 3.20 x 10^23 formula units of iron (III) oxide (Fe203)?

What information does a complete ionic equation give that the balanced equation doesn’t show?

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

What is the formula of the ionic compound composed of calcium cations and chloride anions