The is a thin layer of strongly ionized gas and is the only part of the Sun that we can actually see when looking at it from Earth, because this is where sunlight is emitted. A)coronaB)photosphereC)prominencesE liminateD)sunspots

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.