The line representing in the melting point of monoclinic sulfur is: O At the line between Point 2 and Point 3
At the line between Point 1 and Point 3
O At the line between Point 1 and Point 2
O The line at temperatures below 95.4 °C

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the representation of the reaction?

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.