kartkówka

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Question		Answer
Cr(chrom) start learning		I, II, VI
Fe(żelazo) start learning		II, III
Cu(miedź) start learning		I, II
Zn(cynk) start learning		II
Pb(ołów) start learning		II, IV
Al(glin) start learning		III
C(węgiel) start learning		II, IV
N(azot) start learning		I-V
O(tlen) start learning		II
S(siarka) start learning		II, IV, VI
Cl(chrom) start learning		I, III, V, VII
Br(brom) start learning		I, III, V, VII

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