And if we know G for all the species G involved in a chemical reaction, we should be able to calculate the chemical equilibrium.
如果我们知道，了关于所有参与，反应的化学物质的，我们就能够计算出化学平衡。
2
Writing at equilibrium that the change in the concentration of one of the species is equal to zero, we're going to use that as an approximation also later, when we get to more complicated mechanisms.