PLEASE HELP! this is due tomorrow and i really need help!!! this is for my final grade! thank you

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution