What could jj thomson conclude from his experiments? a. atoms are empty spaceb. most of the mass of the atom is concentrated in the center c. atoms must balance positive and negative particlesd. atoms are indivisible

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 ->

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

What is the percent by mass of oxygen in fe2o3