Which of the following describes an exothermic reaction?
O
A. AHI, reactants = 0
O
B. AHf, reactants = AHf, products
O
C. A He, reactants > AHf, products
O
D. A He, reactants < AH, products

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.