Jawabanmu

2014-03-18T14:59:23+07:00
AA + R = aAR
Ca2 + CaO42- → CaC2O4(S)
CaC2O4 → CaO(S) + CO2 (g) + CO(g)
HCl, H2SO4, dan HNO3
Ca+2 + H2C2O4 => CaC2O4 ==> endapan putih
cuma tau segitu sorry :)
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