If both reactants are completely consumed and we produce 20 formula units of AgCl, how many ions of Mg and F did we start with?

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

Which method would be best to separate a mixture of sand and gravel