Use the bond energies provided to estimate δh°rxn for the reaction below. hint: draw the lewis structures for reactants and products to determine the number of bonds pcl3(g) + cl2(g) → pcl5(l) δh°rxn = ?

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

1 a

2 d

3 a

4 c

explanation:

c.

explanation:

b.

the accuracy of the data.