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Find integers x and y such that 57x+79y=17, and 400 Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons? If I save 300 dollars every 2 weeks for 6months how much will I have? How many degrees of strog base and strog acid? Why anti Rh antibodies destroy foetal lamphocytes and dot effect mother s lamphocytes?