K2CO3+2HNO3 ---> 2KNO3 + H2O + CO2
<span>СО3(2-) + 2Н+ ---> H2O + CO2 </span>
Определить по формулам что это оксиды,основания,кислоты,соли Na2O2,CaC2,SiF4,Al2O3,KHCO3,KAI(SO4)2,HJ,COCl3,HBr,Ca(HCO3)2,Na2S2O
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<span><span><span>оксиды </span>Na2O2 <span>Al2O3 <span>Na2S2O3</span></span></span></span>
<span><span><span><span>основания<span>NaOH </span><span>Zn(OH)Br,<span>Cu(OH)2 <span>RbOH,</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span>кислоты <span>KHCO3,</span><span>HJ <span>HBr <span>H2S</span> </span></span></span></span></span></span></span></span></span>
<span><span><span>соли </span>K3(FE(CN)6),<span>Fe(CNS)3,AgC<span>l</span> <span>Ca(HCO3) <span>KAI(SO4)2 <span>SiF4 <span>CaC2</span></span></span></span></span></span></span>
CuO + H2SO4 = CuSO4 + H2O
98gr H2SO4 - 160 gr CuSO4
29,4 - X
X = 48 gr
98 gr H2SO4 - 18 gr H2O
29,4 - X
X = 5,4 H2O