Cân = pthh
CxHy(COOH)2 + O2 -------> CO2 + H2O
cxhy(cooh)z + o2 → co2 + h2o
4CxHy(COOH)2 + (2x+y+2)O2 → (2y+4)H2O + (4x+8)CO2
CÂN BẰNG PHƯƠNG TRÌNH
A,CxHyCOOH+O2→CO2+H2O
B,CxHy(COOH)2+O2→CO2+H2O
a) \(C_xH_yCOOH\) + \(\left(x+\frac{y}{4}+\frac{1}{4}\right)O_2\rightarrow\left(x+1\right)CO_2+\left(\frac{y}{2}+\frac{1}{2}\right)H_2O\)
b) \(C_xH_y\left(COOH\right)_2+\left(x+\frac{y}{4}+\frac{1}{2}\right)O_2\rightarrow\left(x+1\right)CO_2+\left(\frac{y}{2}+1\right)H_2O\)
CxHy(COOH)2 + O2 ---> CO2 + H2O
(2x+y+2)O2 | + | 4CxHy(COOH)2 | → | (2y+4)H2O | + | (4x+8)CO2 |
Cân bằng PTHH sau.
a, Fe3O4 +HCl ---> FeCl2+FeCl3 +H2O
b, Fe + HNO3 ---> Fe(NO3)3 +NO2+HO2
c, CxHy+ O2 ---> CO2 +H2O
Lm giảng giải ra nhẻ
Cân Bằng Hai PTHH sau:
1. CnH2n - 6 + O2 → CO2 + H2O
2. CnH2n + 2O + O2 → CO2 + H2O
\(C_nH_{2n-6}+\dfrac{3n-3}{2}O_2\underrightarrow{^{^{t^0}}}nCO_2+\left(n-3\right)H_2O\)
\(C_nH_{2n+2}O+\dfrac{3n}{2}O_2\underrightarrow{^{^{t^0}}}nCO_2+\left(n+1\right)H_2O\)
$1) C_nH_{2n-6} + \dfrac{3n-3}{2}O_2 \xrightarrow{t^o} n CO_2 + (n - 3) H_2O$
$2) C_nH_{2n+2}O + \dfrac{3n}{2}O_2 \xrightarrow{t^o} nCO_2 + (n + 1)H_2O$
CnH2n-6 +\(\dfrac{3n-3}{2}\)O2 -> nCO2 + (n-3)H2O
CnH2n+2O + \(\dfrac{3n}{2}\)O2 -> nCO2 + (n+1)H2O
1.FexOy+HCl----FeCl2y/x+H2O
2. CxHy+O2------CO2+H2O
3. CnH2n+O2------CO2+H2O
4.CnH2n+2+O2------CO2+H2O
5.CxHyOz+o2-------CO2+H2o
6.CnH2n+O2------CO2+H2O
1.\(Fe_xO_y+2yHCl-->xFeCl_{\dfrac{2y}{x}}+yH_2O\)
2.\(2C_xH_y+\left(\dfrac{4x+y}{2}\right)O_2-->2xCO_2+yH_2O\)
3.\(C_nH_{2n}+\dfrac{3n}{2}O_2-->nCO_2+nH_2O\)
4.\(C_nH_{2n+2}+\left(\dfrac{3n+1}{2}\right)O_2-->nCO_2+\left(n+1\right)H_2O\)
5. \(2C_xH_yO_z+\left(\dfrac{4x+y-2z}{2}\right)O_2-->2xCO_2+yH_2O\)
6. (pthh này giống pt 3)
Hoàn thành các PTHH có sơ đồ phản ứng sau:
a. Fe3O4 + HCl - - - > FeCl2 + FeCl3 + H2O
b. NaOH + Al + H2O - - - > NaAlO2 + H2
c. M + H2SO4 (đặc, nóng) - - - > M2(SO4)3 + SO2 + H2O
d. CxHy + O2 - - - > CO2 + H2O
\(a.Fe_3O_4+8HCl\rightarrow FeCl_2+2FeCl_3+4H_2O\\ b.NaOH+Al+H_2O\rightarrow NaAlO_2+\dfrac{3}{2}H_2\\ c.2M+6H_2SO_4\rightarrow M_2\left(SO_4\right)_3+3SO_2+6H_2O\\ d.2C_xH_y+\dfrac{4x+y}{2}O_2\rightarrow2xCO_2+yH_2O\)
a) \(Fe_3O_4+8HCl\rightarrow FeCl_2+2FeCl_3+4H_2O\)
b) \(2NaOH+2Al+2H_2O\rightarrow2NaAlO_2+3H_2\)
c) \(2M+6H_2SO_4\rightarrow M_2\left(SO_4\right)_3+3SO_2+6H_2O\)
d) \(2C_xH_y+\dfrac{4x+y}{2}O_2\underrightarrow{t^o}2xCO_2+yH_2O\)
Cân bằng các pt:
1/ FexOy + H2---> FeO + H2O
2/ CxHy + O2 ----> CO2 +H2O
3/ KMnO4 + HCl ----> KCl + MnCl2 + Cl2 +H2O
\(1) Fe_xO_y + (y-x)H_2 \xrightarrow{t^o}xFeO + (y-x)H_2O\\ 2) C_xH_y + (x + \dfrac{y}{4})O_2 \xrightarrow{t^o} xCO_2 + \dfrac{y}{2}H_2O\\ 3) 2KMnO_4 + 16HCl \to 2MnCl_2 + 2KCl + 5Cl_2 + 8H_2O\)
Cân bằng các PTHH sau:
CnH2n + O2 ---> CO2 + H2O
CxHy + O2 ---> CO2 + H2O
CxHyOz + O2 ---> CO2 + H2O
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