Which of the following will form a metallic bond with a metal? a
another metal
b
none of the other choices
c
semimetal
d
a nonmetal

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.

Answerhund's rule;