Which of the following is a chemical property of a base?
a) slippery feel
b) conducts an electric current
c) turns red litmus paper blue
d) forms hydronium ions in water

D) forms hydronium ions in water

Explanation:

Answer A is an example of texture and answer B is an example of conductivity while answer C is not referring to a chemical property at all. Therefore, D would be the correct answer.

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.