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9 tháng 5 2021

\(2NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O\)

\(H_2S+4Br_2+4H_2O\rightarrow8HBr+H_2SO_4\)

\(NaCl+AgNO_3\rightarrow AgCl+NaNO_3\)

9 tháng 5 2021

$2NaOH + Cl_2 \to NaCl + NaClO + H_2O$

$H_2S + 4Br_2 + 4H_2O \to 8HBr + H_2SO_4$

$NaCl + AgNO_3 \to AgCl + NaNO_3$

27 tháng 4 2022

\(1,CH_4+Cl_2\underrightarrow{\text{ánh sáng}}CH_3Cl\\ 2,C_6H_6+Br_2\xrightarrow[t^o]{Fe}C_6H_5Br\\ 3,C_6H_6+Cl_2\underrightarrow{\text{ánh sáng}}C_6H_5Cl\\ 4,2CH_3COOH+CaCO_3\rightarrow\left(CH_3COO\right)_2Ca+CO_2\uparrow+H_2O\\ 5,\left(RCOO\right)_3C_3H_5+3NaOH\rightarrow3RCOONa+C_3H_5\left(OH\right)_3\\ 6,CaCO_3+CO_2+H_2O\rightarrow Ca\left(HCO_3\right)_2\\ 7,2NaHCO_3\underrightarrow{t^o}Na_2CO_3+CO_2\uparrow+H_2O\\ 8,NaOH+SiO_2\underrightarrow{t^o}Na_2SiO_3+H_2O\)

\(9,NaHCO_3+HCl\rightarrow NaCl+CO_2\uparrow+H_2O\\ 10,Cl_2+H_2O⇌HCl+HClO\\ 11,CH_3COOC_2H_5+NaOH\rightarrow CH_3COONa+C_2H_5OH\\ 12,C_6H_6+3H_2\xrightarrow[t^o]{Ni}C_6H_{12}\\ 13,\left(RCOO\right)_3C_3H_5+3H_2O\rightarrow3RCOOH+C_3H_5\left(OH\right)_3\\ 14,\left(-C_6H_{10}O_5-\right)_n+nH_2O\rightarrow nC_6H_{12}O_6\\ 15,CH_3COONa+NaOH\underrightarrow{t^o}CH_4\uparrow+Na_2CO_3\\16, Ca\left(HCO_3\right)\underrightarrow{t^o}CaCO_3+CO_2\uparrow+H_2O\)

\(17,MnO_2+4HCl\rightarrow MnCl_2+Cl_2\uparrow+2H_2O\\ 18,NaHCO_3+NaOH\rightarrow Na_2CO_3+H_2O\\ 19,2C_4H_{10}+5O_2\xrightarrow[men,xt]{t^o}4CH_3COOH+2H_2O\\ 20,2NaOH+Cl_2\rightarrow NaCl+NaClO+H_2O\\ 21,CH_3COOC_2H_5+H_2O\underrightarrow{t^o}CH_3COOH+C_2H_5OH\)

8 tháng 6 2021

\(1) 2Fe(OH)_3 \xrightarrow{t^o} Fe_2O_3 + 3H_2O\\ 2) Na_2O + H_2SO_4 \to Na_2SO_4 + H_2O\\ 3) ZnO + H_2SO_4 \to ZnSO_4 + H_2O\\ 4) NaOH + HCl \to NaCl + H_2O\\ 5) 2NaOH + CO_2 \to Na_2CO_3 + H_2O\\ 6) Mg + 2HCl \to MgCl_2 + H)2\\ 7) Cu + 2AgNO_3 \to Cu(NO_3)_2 + 2Ag\\ 8) 2K + S \xrightarrow{t^o} K_2S\)

9 tháng 6 2021

1, $2Fe(OH)_3\xrightarrow{t^o} Fe_2O_3+3H_2O$

2, $H_2SO_4+2NaOH\to Na_2SO_4+2H_2O$

3, $H_2SO_4+Zn(OH)_2\to ZnSO_4+2H_2O$

4, $NaOH+HCl\to NaCl+H_2O$

5, $2NaOH+CO_2\to Na_2CO_3+H_2O$

6, $Mg+2HCl\to MgCl_2+H_2$

7, $Cu+2AgNO_3\to Cu(NO_3)_2+2Ag$

8, $2K+S\xrightarrow{t^o} K_2S$

16 tháng 3 2022

CH4 + 2O2 -> (t°) CO2 + 2H2O

C2H2 + 2Br2 -> C2H2Br4

CH4 + Cl2 -> (askt) CH3Cl + HCl

2C2H2 + 5O2 -> (t°) 4CO2 + 2H2O

C2H4 + Br2 -> C2H4Br2

nCH2=CH2 -> (t°, p, xt) n(-CH2-CH2-)

C2H4 + 3O2 -> (t°) 2CO2 + 2H2O

18 tháng 2 2022

a) \(N_2+O_2\rightarrow2NO\)

\(\begin{matrix}N^0\rightarrow N^{+2}+2e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times1\end{matrix}\)

b) \(C_2H_5OH+3O_2\rightarrow2CO_2+3H_2O\)

\(\begin{matrix}C^{-2}\rightarrow C^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)

c) \(CH_4+2O_2\rightarrow CO_2+2H_2O\)

\(\begin{matrix}C^{-4}\rightarrow C^{+4}+8e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times4\end{matrix}\)

d) \(2H_2S+3O_2\rightarrow2H_2O+2SO_2\)

\(\begin{matrix}S^{-2}\rightarrow S^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)

e) \(4NH_3+3O_2\rightarrow2N_2+6H_2O\)

\(\begin{matrix}N^{-3}\rightarrow N^0+3e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times2\\\times3\end{matrix}\)

18 tháng 2 2022

a)N2+O2->2NO

b)C2H5OH+3O2->2CO2+3H2O

c)CH4+2O2->CO2+2H2O

d)H2S+3/2O2->H2O+SO2 / 2H2S+3O2->2H2O+2SO2

e)2NH3+3/2O2->N2+3H2O / 4NH3+3O2->2N2+6H2O

CHÚC BN HỌC TỐT :))))

24 tháng 2 2019

Tự cân bằng nhá!
a,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+Fe\rightarrow FeCl_3\\ FeCl_3+NaOH\rightarrow Fe\left(OH\right)_3+NaCl\\ NaCl+H_2SO_{4\left(dn\right)}\rightarrow Na_2SO_4+HCl\\ HCl+CuO\rightarrow CuCl_2+H_2O\\ CuCl_2+AgNO_3\rightarrow Cu\left(NO_3\right)_2+AgCl\)
b,

\(KMnO_4+HCl\rightarrow KCl+MnCl_2+Cl_2+H_2O\\ Cl_2+H_2\rightarrow HCl\\ HCl+Fe\left(OH\right)_3\rightarrow FeCl_3+H_2O\\ FeCl_3+AgNO_3\rightarrow Fe\left(NO_3\right)_3+AgCl\\ AgCl-as,t^o->Ag+Cl_2\\ Cl_2+NaBr\rightarrow NaCl+Br_2\\ Br_2+NaI\rightarrow NaBr+I_2\)

c, Giống câu b 3 pt đầu
\(HCl+Fe\left(OH\right)_2\rightarrow FeCl_2+H_2O\\ FeCl_2+AgNO_3\rightarrow Fe\left(NO_3\right)_2+AgCl\\ AgCl-as,t^o->Ag+Cl_2\)
d,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+Fe\rightarrow FeCl_3\\ FeCl_3+NaOH\rightarrow Fe\left(OH\right)_3+NaCl\\ Fe\left(OH\right)_3+H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+H_2O\)
e,

\(HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+NaOH\rightarrow NaCl+NaClO+H_2O\\ NaCl+H_2SO_{4\left(dn\right)}\rightarrow Na_2SO_4+HCl\\ CuO+HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+AgNO_3\rightarrow Cu\left(NO_3\right)_2+AgCl\\ AgCl-as,t^o->Ag+Cl_2\)
f,

\(MnO_2+HCl\rightarrow MnCl_2+Cl_2+H_2O\\ Cl_2+KOH-t^o->KClO_3+KCl+H_2O\\ KClO_3\rightarrow KCl+O_2\\ KCl+H_2SO_{4\left(dn\right)}\rightarrow K_2SO_4+HCl\\ HCl+MnO_2\rightarrow MnCl_2+Cl_2+H_2O\\ Ca\left(OH\right)_2+Cl_2\rightarrow CaCl_2+Ca\left(ClO\right)_2+H_2O\)

24 tháng 2 2019

Cái KClO3 ra KCl thêm nhiệt độ
Các MnO2; KMnO4 phản ứng với HCl thì HCl đặc nóng
Fe với Cl2 thêm nhiệt độ
Cl2 với H2 thêm ánh sáng
Nguyễn Văn Thành

11 tháng 3 2020

1/

MnO2+ 4HCl\(\rightarrow\) MnCl2+ Cl2+ 2H2O

Cl2+H2\(\xrightarrow[]{as}\) 2HCl

HCl+ NaOH\(\rightarrow\) NaCl+ H2O

2NaCl\(\xrightarrow[]{đpnc}\) 2Na+ Cl2

Cl2+ SO2+ 2H2O\(\rightarrow\) H2SO4+ 2HCl

H2SO4 đặc+ NaCltinh thể\(\xrightarrow[]{< 250\cdot C}\) NaHSO4+ HCl

4/

H2SO4 đặc+ NaCltinh thể\(\xrightarrow[]{< 250\cdot C}\) NaHSO4+ HCl

MnO2+ 4HCl\(\rightarrow\) MnCl2+ Cl2+ 2H2O

3Cl2+ 6KOHđặc\(\rightarrow\) KClO3+ 5KCl+ 3H2O

2KClO3\(\xrightarrow[MnO2]{to}\) 2KCl+ 3O2

2KCl\(\xrightarrow[]{đpnc}\) K+ Cl2

Cl2+ Ca(OH)2\(\xrightarrow[]{30\cdot C}\) CaOCl2+ H2O

11 tháng 3 2020

1, \(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(Cl_2+H_2\underrightarrow{as,t^o}2HCl\)

\(HCl+NaOH\rightarrow NaCl+H_2O\)

\(2NaCl+2H_2O\xrightarrow[cmn]{đpdd}2NaOH+Cl_2+H_2\)

\(4Cl_2+4H_2O+H_2S\rightarrow H_2SO_4+8HCl\)

\(H_2SO_4+NaCl\underrightarrow{>400^oC}Na_2SO_4+HCl\uparrow\)

2, \(2KMnO_4+18HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)

\(3Cl_2+2Fe\underrightarrow{t^o}2FeCl_3\)

\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)

\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)

3, \(4HCl+MnO_2\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(3Cl_2+2Fe\underrightarrow{t^o}2FeCl_3\)\(FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\downarrow\)

\(2NaCl+H_2SO_4\underrightarrow{>400^oC}Na_2SO_4+2HCl\)

\(2HCl+Cu\left(OH\right)_2\rightarrow CuCl_2+2H_2O\)

\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)

4, \(H_2SO_4+2NaCl\underrightarrow{>400^oC}Na_2SO_4+2HCl\uparrow\)

\(4HCl+MnO_2\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(3Cl_2+6KOH\underrightarrow{80-100^oC}5KCl+KClO_3+3H_2O\)

\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)

\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)

\(Cl_2+Ca\left(OH\right)_2\underrightarrow{30^oC}CaOCl_2+H_2O\)

Bạn tham khảo nhé!

1 tháng 8 2019

a) 2FeCl2 + Cl2 \(\underrightarrow{to}\) 2FeCl3

b) Al2O3 + 6HCl → 2AlCl3 + 3H2O

c) 3KOH + H3PO4 → K3PO4 + 3H2O

d) 4CO + Fe3O4 \(\underrightarrow{to}\) 3Fe + 4CO2

e) 3Cl2 + 6KOH → 5KCl + KClO3 + 3H2O

g) 4Zn + 5H2SO4 → 4ZnSO4 + H2S + 4H2O

1 tháng 8 2019
https://i.imgur.com/NUabR1U.jpg
5 tháng 3 2017

1) FeCl2 + 2NaOH \(\rightarrow\) Fe(OH)2 + 2NaCl

2) 2Fe(OH)3 \(\rightarrow\) Fe2O3 + 3H2O

3) 4NH3 + 3O2 \(\rightarrow\) 2N2 + 6H2O

4) Na2SO3 + 2HCl \(\rightarrow\) 2NaCl + SO2 + H2O (Bạn chép sai đề nhé!)

5) 2H2S + 3O2 \(\rightarrow\) 2SO2 + 2H2O

1) FeCl2 + 2NaOH -Dung môi trong môi trường N2-> Fe(OH)3 + 2NaCl

2) 2Fe(OH)3 -to> Fe2O3 + 3H2O

3) 2NH3 + \(\frac{3}{2}\)O2 -to-> N2 + 3H2O

4) NaSO3 + 2HCl -> 2NaCl + SO2 + H2O

5) 2H2S + 3O2 -to> 2SO2 + 2H2O

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