2Fe + 3C02
3CO + Fe2O3
AH = -24.7 kJ
Is the reaction exothermic or endothermic?

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst