W(соли)=m(соли)/m(р-ра) *100%=25/(360+25) *100%=6,5%
Ch4 + Cl2 = (hn) Ch3Cl + HCl
2Ch3Cl + 2Na = C2h6 + 2naCl
c2h6 = (Pt) с2h4 + h2
<span>2c2h4 + O2 = (PdCl2 CuCl2) 2Ch3ChO </span>
<span>CH3COH + 2[Ag(NH3)2]OH = CH3COOH + 2Ag + 4NH3 + H2O. </span>
Ch3CooH + C2h5oh = (H2so4) ch3cooc2h5 + h2o
ch3cooc2h5 + h2o = ch3cooh + c2h5oh
<span>c2h5oh = (h2so4 t>120) с2h4 + h2o </span>
<span>с2h4 + Hcl = c2h5Cl</span>
+1 -1 +1 +6 -2 +3 -1 0 +1 -2 +1-1
14HCl + K2Cr2O7 = 2CrCl3 + 3Cl2↑ + 7H2O + 2K<span>Cl
+1 0
2Cl-1e*2=>Cl2 3
+6 +3
Cr+3e=>Cr 2</span>
Fe+H₂SO₄==>FeSO₄+H₂
FeSO₄+2NaOH==>Na₂SO₄+Fe(OH)₂
Fe(OH)₂==>FeO+H₂O (температура)
FeO+H₂==>Fe+H₂O