How many grams of CO2 are produced from 0.64 miles of Fe2O3? How many moles of iron are produced from 42.9 g of Carbon Monoxide?

What mass of CO will be needed to make 253.6g of Fe2O3?

Use three significant digits and don’t use labels.

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.