А)KOH+HNO3=KNO3+H20
K(+)+OH(-)+H(+)+NO3(-)=K(+)+NO3(-)+H2O
OH(-)+H(+)=H2O
б)2KOH+CuSO4=Cu(OH)2+K2SO4
2K(+)+2OH(-)+Cu(2+)+SO4(2-)=Cu(OH)2+2K(+)+SO4(2-)
2OH(-)+Cu(2+)=Cu(OH)2
Alx Cy
75% 25%
х:у = 75/27 : 25/12 = 2,78 : 2,08
х:у = 2,78/2,08 : 2,08/2,08 = 1,34 : 1 | *3
x:у=4:3
Ответ:
![Al_{4}C_{3}](https://tex.z-dn.net/?f=+Al_%7B4%7DC_%7B3%7D+)
CH3COOH+NaOH=CH3COONA+H2O
2CH3COOH+2Zn=2CH3COOZn+H2
2CH3COOH+Na2CO3=2CH3COONA+H2O+CO2
А) СH <u>=</u> C - CH₃
б) CH₃ - CH₂ - CH₂ - CH₂ - CH₃
в) CH₂ = CH - CH₂ - CH₃
г) CH₂ = C - CH₂ - CH₃
|
CH₃