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OK.
noone is online now (sob), so im forced to ask general questions. if you know the answer, CALL ME. before 900, if possible.
whats the chemical formula for aluminum oxide?
how woukd you find how mant atoms od chlorine are in 15g CaCl2
wtf is the metal/halogen series and what does it do?
otherwise, im ok, chemistry-wise.
LAUREN DON'T YOU DARE ( Read more... )
noone is online now (sob), so im forced to ask general questions. if you know the answer, CALL ME. before 900, if possible.
whats the chemical formula for aluminum oxide?
how woukd you find how mant atoms od chlorine are in 15g CaCl2
wtf is the metal/halogen series and what does it do?
otherwise, im ok, chemistry-wise.
LAUREN DON'T YOU DARE ( Read more... )
Comments 1
15g X (1 mol/the gfm of CaCl2) X (6.02 X 10^23 mlc/1 mol) gives you the number of molecules. Then, multiply that by two (2 Chlorines in CaCl2), and you have your answer.
The metal/halogen series is this: Li-Rb-K-Ca-Na-Mg-Al-Mn-Zn-Fe-Ni-Sb-Pb-Cu-Ag-Pt-Au and F-Cl-Br-I.
Quite simply, the higher ones on the list (closer to first) can replace the lower ones when the lower ones are in compounds, but not vice-versa. So, you can replace lead for silver in silver oxide, and fluorine for bromine in hydrobromic acid, but you can't replace silver for lead in lead oxide, or bromine for fluorine in hydrofluoric acid. Confused yet?
Glad to be of assistance.
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