Which statement describes a property of magnets? Magnets repel objects that are made of iron. Magnets attract sheets of paper. Magnets attract or repel iron nails. Magnets attract or repel other magnets.

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

Which factor is likely to impact the possible number of compounds ?

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.