Assign oxidation numbers to substances in the three-step production of sulfuric acid to show which reactions are redox and which are not. S (s) + O2 (g) → SO2 (g)

SO2 (g) + O2 (g) → SO3 (g)

SO3 (g) + H2O (l) → H2SO4 (l)

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 ->

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Light waves can move through , but they travel fastest when they move through a(n) .