If the pattern of ions shown here for the galena is expanded in every direction, how many sulfide ions would surround each lead ion? ___ How many lead ions would surround each sulfide ion? ___ PLEASE HELP ASAP!!

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

How many atoms are there in 5.70 mol of mg

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?