If 0.81 moles of AlF3 are used, how many moles of O2 are needed for this reaction to run to completion?

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?

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

What is the molar mass of a gas that has density of 2.054 g/l