A good analogy for the chemist's mole is 1
dozen = 12. List a few others

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

The same side of the moon always faces earth because the

What does a numerical subscript following an element in a chemical formula mean?