An atom that has a filled valence shell is stable and unreactive.

Consider the following two chemical equations:
A. glucose + fructose → sucrose + H₂O, Δ G = +27 kJ/mole (or +6.5 kcal/mole)
B. glucose + fructose + ATP → sucrose + ADP + P_i, Δ G = −5 kJ/mole (or −1.2 kcal/mole)
The overall free energy change in the chemical equations (A) and (B) above is accomplished by

A) a decrease in activation energy.
B) combining two endergonic reactions.
C) combining an endergonic and an exergonic reaction.
D) combining two exergonic reactions.
E) measuring the reaction rate.

Which of the following ribs attaches to the sternum at the sternal angle?

A) The first
B) The second
C) The seventh
D) The twelfth
E) The third

Employee empowerment unionism uses the solidarity of employee to negotiate explicit wage rates tied to jobs, not individuals.