14. The empirical formula of a certain hydrocarbon is CH2. When 0.125 moles of this
hydrocarbon is completely combusted with excess oxygen, it is observed that 8.40 L of
CO2 gas is produced at STP. What is the molecular formula of the unknown hydrocarbon ?
(a) CH2
(b) C, H,
(c) C, H
(d) C3H6

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Connect the whole numbers on the periodic table to indicate what they represent?