Stop-and-Go Chemistry

Our earthly fire also consumes more or less rapidly according as the object which It attacks is more or less combustible so that human ingenuity has even succeeded in inventing chemical preparations to check or frustrate its action. 

What happened Iron, like nitrogen, can tolerate different numbers of electrons associated with its nucleus. The oxidation state of an element in a given environment— be it a free element, an ion, or in a compound—is an expression of the element s electron load in that environment. In the 

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