List 3 elements tyat would have similar properties to chlorine

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

What reaction is taking place? 02 + c3h8 = h20 + co2

Classify this reaction: 2al+n2-> aln.