<span>барий+</span>оксид<span> </span>бария<span>+</span>гидроксид<span> </span>бария<span>+</span>хлоридбария<span>+фосфат </span>бария<span>.</span>
<span>2Ba+O2=2BaO BaO+H2O=Ba(OH)2 Ba(OH)2+2HCl=BaCl2 3BaCl2+2FePO4=2FeCl3+Ba3(PO4)2.</span>
C2H5Cl + HCl = C2H6 + Cl2
CH3 CH3
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СH3 - С H - СH - СH - СH - СH2 - СH3
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C2H5 C3H7
C3H7COOH+BR2=C3H7COOBR+HBR