I missed the lecture in class today, but from what I can gather, it involved the driving forces of chemical equations, which are the formation of a solid, water or gas or the transfer of electrons. A chemical reaction involves a change in energy and will only occur if a driving force is present. Each occurs in a certain reaction, such as the formation of a solid (precipitate) occurs in a double replacement reaction and the formation of water occurs in either an acid-base neutralization reaction or combustion. I also used these resources to fill in the gaps of the notes.
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