Determine the number of moles in a sample of calcium that contains 6.34 x 1022
atoms.

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 ->

Stage in which a typical star has completely stopped fusion

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.