Al(OH)3 +3HNO3 -> Al(NO3)3 + 3H2O
Al(OH)3 + 3H(+)+3NO3(-) ->Al(+3)+3NO3(-) + 3H2O
Al(OH)3 + 3H(+) -> Al(+3)+3H2O
1+3+1+3=8
ответ: 3)
<span>Уксусный альдегид- это правильно!</span>
CH4 + CL2= CH3CL + HCL
2CH3CL + 2Na = C2H6 + 2NaCl
C2H6= C2H4 + H2
C2H4 + H2O = C2H5OH
C2H5OH + CuO = CH3COH + Cu + H2O
2CH3COH + O2 = 2CH3COOH
CH3COOH + NaOH = CH3COONa + H2O
CH3COONa + NaOH = CH4 + Na2CO3
2CH4 = C2H2 +3H2
C2H2 + H2O = CH3COH
CH3COH + H2 = C2H5OH
C2H5OH + CH3COOH = CH3COOC2H5 + H2O
1)CH3-CH2-CH2-CH2Br+KOH=CH3-CH2-CH=CH2+KBr+H2O
CH3-CH2-CH=CH2+HBr=CH3-CH2-CHBr-CH3
2CH3-CH2-CHBr-CH3+2Na=CH3-CH2-CH-CH-CH2-CH3 +2NaBr
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CH3 CH3
CH3-CH2-CH-CH-CH2-CH3+Br2=CH3-CH2-CBr-CH-CH2-CH3+HBr
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CH3 CH3 CH3
2)CH3-CH=CH2 +HOH=CH3-CHOH-CH3
3)2CH2=CH-CH3+O2=2CH2-CH-CH3
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O
4)CH3-CH=CH-CH3+HCl=CH3-CHCl-CH2-CH3
5)CH3-CH2-C(CH3)2-CH3(t)=CH2=CH-C(CH3)2-CH3
6)CH3-CH2-CH=CH2+HOH=CH3-CH2-CHOH-CH3
7)CH3-CH2-C(CH3)=CH2-CH3+HOH=CH3-CH2-C(CH3)OH-CH3
8)CH3-CH=CH-CH3+Cl2=CH3-CHCl-CHCl-CH3
9)2C5H10+15O2=10CO2+10H2O