PLEASE HELP ASAP I WILL MARK BRAINLIEST :( Which part of the cell allows some materials in and out? Chromotin, mitochondria , cell membrane, nucleus.

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 ->

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

What relationship exists between an enzyme and a catalyst?