Which of the following statements about a base are TRUE?
1. Bases are used in the manufacturing of soap.
2. Bases have a sour taste.
3. Fertilizer manufacture and cotton processing use bases.
1 and 3 only
2and 3 only
All of 1, 2, and 3
1 and 2 only

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.