4fe+3o2--> 2fe2o3. how many moles of fe2o3 are produced from 0.5 moles of o2? a. 0.33 mol b. 0.75 mol c. 0.38 mol d. 0.67 mol

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

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.