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OpenStudy (anonymous):
how do you know how to write the formula for potassium dichromate? where does the 07 come from?
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OpenStudy (aaronq):
i don't think theres a way to know this but by memorization.. I'm pretty sure it's derived experimentally
OpenStudy (anonymous):
we had to write the formulas for like 15 different compounds and the last one was potassium dichromate. i would have guessed it was KCr2....i dont see where the 0t at the end comes from @aaronq
OpenStudy (anonymous):
oops O7
OpenStudy (aaronq):
ate means that it's usually combine with oxygen e.g. CO3 2- carbonate, ClO4 perchlorate, MnO4 permanganate, NO3 nitrate
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