Which of the following reactions would result in the formation of a gaseous product?
which of the following reactions would result in the formation of a gaseous product?
naoh + hcl →
nh3 + hno3 →
khco3 + hbr →
ca(oh)2 + h3po4 →

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.