Melting point of impure vs pure compounds? are there any cases where the melting point of an impure compound may be higher than the pure compound? explain.

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 ->

Define dew point. i am writing this part to be able to ask the question

May someone me with these science questions