3. i bought 4 quarts of milk at the
store. how mariy ml is that?

29.1-12=17.1the answer is this one

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.