How do i balance chemical equations?

What type of reaction is zn + cucl2 → cu + zncl2?

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 ->

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?