You have 1.69 times 10^22 formula units of MgCl2, how many grams of CrCl3 will that form?

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?