Ответ:
1) Cr=8
<em>Be</em><em>=</em><em>2</em>
<em>Si</em><em>=</em><em>1</em><em>8</em>
<em>GE</em><em>=</em><em>4</em>
H H H H
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H—C—C—C—C—H
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H C2H5 H NO2
<span>CuO + C= Cu + CO
</span><span>Cu+Hg(NO3)2=Cu(NO3)2 + Hg
</span>CuO+CO=Cu+CO<span>2
</span><span>CuO+H2So4=CuSO4+H2O
</span><span>CuO+H2=Cu+H2O
</span><span>Mg+CuO=MgO+Cu
</span>C2H5OH+CuO=CH3COH+Cu+H2O
<span>2Cu+O2=2CuO
</span><span>Cu(OH)2=CuO+H2O
</span>Cu2(OH)2CO3=<span>2CuO + CO2 + H2O
</span><span>CU(OH)2+2HCl=CuCl2+2H2O
</span>2Cu(OH)2+CO2=<span>Cu2(OH)2CO3+H2O
</span><span>CH3COH+2CU(OH)2=CH3COOH+Cu2O+2
H2O
</span><span>CuSO4+2NaOH=Cu(OH)2+Na2SO4</span>
t, HgSO4
CH3 - CH2 - CH2 - C ≡ CH + HOH -------------> CH3 - CH2 - CH2 - CH2 - COH
пентин-1 пентаналь
Реагирует с А, Г по карбоксильной группе, и с Б по аминогруппе