ch3cl? (Function and use of dichloromethane) Qiuzhi Academy
Chemical equations are the basis of learning chemistry and are also the key content of high school chemistry learning. The chemical equations for the first and second grades are compiled below for your reference!
2. Necessary important chemical equations:
Methane and chlorine have a substitution reaction.
CH4+cl 2ch2 cl+HCl
CH3Cl+Cl2CH2Cl2+HCl
CH2Cl2+Cl2CHCl3+HCl
Cl3+cl2cl4+HCl (All conditions are light.)
Laboratory methane production
CH3COONa+NaOHNa2CO3+CH4 (provided heating CaO)
Ethylene combustion
CH2=CH2+3O22CO2+2H2O (under ignition conditions)
Ethylene and bromine water.
CH2=CH2+Br2CH2Br-CH2Br
Ethylene and water
CH2 = CH2=CH2+H20CH3CH2OH (under catalyst conditions)
Ethylene and hydrogen chloride
CH2=CH2+HClCH3-CH2Cl
Ethylene and hydrogen
CH2=CH2+H2CH3-CH3 (under the condition of catalyst)
Ethylene Polymerization
2 = CH2-[-CH2-CH2-] n-(under catalyst conditions)
Vinyl Chloride Polymerization
2 = chcl-[-CH2-chcl-] n-(under catalyst conditions)
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Laboratory ethylene production
Ch3ch20hch2 = CH2+H2O (heating, concentrated H2SO4)
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Acetylene combustion
C2+3o22co2+H2O (under ignition conditions)
Acetylene and bromine water
C2H2+2Br2C2H2Br4
Acetylene and hydrogen chloride
Two-step reaction: C2 H2+HCl C2 h3cl-C2 h3cl+HCl C2 H4 Cl2
Acetylene and hydrogen.
Two-step reaction: C2H2+H2C2H4C2H2+2H2C2H6 (catalyst)
Laboratory acetylene production
Calcium chloride C2H2 calcium bicarbonate
Equation for the synthesis of polyethylene from salt, water, limestone and coke.
CaCO3= = = CaO+CO2 2CaO+5C = = = 2ca C2+CO2
Calcium chloride+2 H2 oc2h 2+Calcium hydroxide
c+H2O = = = Co+ H2-high temperature
C2H2+H2C2H4 -addition of acetylene to ethylene
C2H4 can be polymerized
Benzene burns
2C6H6+15O212CO2+ 6H2O (under ignition conditions)
And the substitution of benzene and liquid bromine.
C6H6+Br2C6H5Br+HBr
And benzene concentrated *** Concentrated nitric acid.
C6H6+HNO3C6H5NO2+H2O (concentrated *** condition)
and benzene hydrogen.
C6H6+3H2C6H12(under catalyst conditions)
Ethanol complete combustion equation
C2OH+3O22CO2+3H2O(under ignition conditions)
p>Ethanol Catalytic Oxidation Equation
2CH3CH2OH+O22CH3CHO+2H2O (under the conditions of the catalyst) (this is the general equation)
Ethanol Elimination Reaction Equation
CH3CH2OHCH2 =CH2+H2O (concentrated *** at 170°C)
Two ethanol molecules undergo intermolecular dehydration.
2CH3CH2OHCH3CH2OCH2CH3+H2O (under the condition that the catalyst concentration is 140°C)
Ethanol and acetic esterification reaction equation
CH3COOH+C2H5OHCH3COOC2H5+H2O
and magnesium acetate
2mg+H2
A common chemical equation:
1, Oxidation:
F2+H2===2HF (explosion in shadow)
F2+Xe(excess)==XeF2
F2(excess)+ Xe==XeF4 (XeF4 is a strong oxidant that can oxidize Mn2+ to MnO4)
Nf+2m = = 2mfn (m means most metals)
F2+2H2O = = = 4HF+O2 (water is a reducing agent)
2F2+2NaOH===2NaF+OF2+H2O
F2+2NaCl===2NaF+Cl2
F2+2NaBr===2NaF+Br2
F2+2NaI===2NaF+I2
F2 (excess)+I2===2IF7
F2 +Cl2(equal volume)===2ClF(ClF belongs to classHalogen: ClF+H2O==HF+HClO)
F2(excess)+Cl2 == 2cl F3(clf 3+3H2O == 3HF+hclo 3)
Cl2+H2 =2HCl (ignition of H2 in Cl2; ignition, heating, slight explosion)
Cl2+2fecl2 = = 2fecl3 (in aqueous solution: Cl2+2fe2+= = 2fe3++3cl)
Cl2+2 nabr = = = 2 NaCl+br2cl 2+2Br = 2Cl+Br2
cL2+2ki = = 2kcl+i2cl2+2i = 2cl+I2
3Cl2(excess)+2KI+3H2O===6HCl+KIO3
3Cl2+I+3H2O=6H++6Cl+IO3
5Cl2+I2+6H2O===2HIO3 +10HCl
5Cl2+I2+6H2O=10Cl+IO3+12H+
Cl2+Na2S===2NaCl+SCl2+S2=2Cl+S
Cl2 +H2S===2HCl+S (in aqueous solution: Cl2+H2S=2H++2Cl+S
Cl2+SO2+2H2O===H2SO4+2HCl
Cl2+ SO2+2H2O=4H++SO42+2Cl
Cl2+H2O 2 = = = 2 HCl+o2cl 2+H2O 2 = 2H ++ Cl+O2
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2. Restoration ability
S+4H++ 6==6NO2+2H2O+
3S+4HNO3 (diluted)=3SO2+4NO+2H2O
3S+4H++4=3SO2+4NO+2H2O
N2+oxygen=2NO
4P+5O2=P4O10 (often written as P2O5)
2P+3X2=2PX3 (X stands for F2, Cl2, Br2) PX3+X2 PX5
4H2O nitric acid (concentrated) phosphoric acid+20NO2+4H2O
C+2F2 CF4 C+2Cl2 CCl4
C+O2 (sufficient) CO2 2C+O2 (a small amount) 2CO
Carbon + carbon dioxide carbon dioxide carbon + H2O carbon dioxide + H2 (production of water gas)
2C+SiO2 Si+2CO (production of crude silicon)
Silicon (coarse)+2cl2sicl4 (sicl4+2h2 = =silicon (pure)+4HCl)
Silicon (powder) + oxygen silicon dioxide silicon + silicon carbide
Silicon + 2 sodium hydroxide + H2O = = sodium silicate + 2 hydrogen (silicon + 2OH + H2O = + 2 hydrogen)
3, disproportionation reaction
Cl2+H2O ==HCl+HClO (add alkali or light to promote disproportionation: (Cl2+H2O2++Cl+HCLO)
Cl2+2 NaOH = = NaCl+NaClO+H2O(Cl2+2OH = Cl+ClO+ H2O)
Cl2+2Ca(OH)2 = = CaCl 2+Ca(ClO)2+2H2O(Cl2+2OH = Cl+ClO+H2O)
3Cl2+6KOH( Concentrated) 5k cl+kclo 3+3H2O(3c L2+6 oh 5 cl+clo 3+3H2O)
3S+6 NaOH 2Na2S+na2so 3+3H2O(3S+6OH 2s 2+SO32+3H2O )
4P+3KOH (concentrated)+3H2O = = PH3+3h2po 2(4p+3OH+3H2O = = PH3+3h2po 2)
11P+15 cuso 4+24H2O = = 5Cu *** +6h3po 4+15 h2so 4
3C+calcium oxide+carbon dioxide
3C+silicon dioxide silicon carbide+2CO
4. with acid The reaction equation
1. The reaction of magnesium and hydrochloric acid:
Magnesium + 2H+ = magnesium + H2
2. The reaction of aluminum to hydrochloric acid
p>2Al + 6H+ = 2Al3+ +3H2
3. The reaction of zinc and hydrochloric acid
Zinc+ 2H+ = zinc+ H2
4. Iron to dilute* ** Response
Iron + 2H+ = Fe2+ + H2
5. Magnesium oxide reacts with dilute ***.
Magnesium oxide + 2H+ = Magnesium + H2O
6. Response of iron oxide to dilute hydrochloric acid
Fe2O3 + 6H+ = 2Fe3+ + 3H2O
7. Reaction of sodium hydroxide and dilute hydrochloric acid
OH- + H+ = H2O
8. Response of magnesium hydroxide and dilute hydrochloric acid
Magnesium hydroxide + 2H+ = magnesium + + 2H2O
9. Reaction of silver nitrate and dilute hydrochloric acid
Ag+ + Cl-=silver chloride
10. Reaction of barium chloride with dilute sulfuric acid
Ba2+ + SO42- = BaSO4
1. Reaction of barium hydroxide with dilute sulfuric acid
Ba2++2OH-+2H++SO42-= BaSO4+2H2O
12. Magnesium chloride reacts with sodium hydroxide solution.
Mg2+ +2OH-=magnesium hydroxide
13. Carbon dioxide reacts with sodium hydroxide solution.
CO2 + 2OH- == CO32-+ H2O
14. Excess carbon dioxide reacts with sodium hydroxide solution.
CO2 + OH-== HCO3-
15. Sulfur dioxide and sodium hydroxide solution should be circulated.
SO2 + 2OH- == SO32- + H2O
16. Excess sulfur dioxide reacts with sodium hydroxide solution.
SO2 + OH-== HSO3-
17. The reaction of carbon dioxide to clarified lime water
CO2+Ca2+ +2OH-== CaCO3+ Youyou Resource Network H2O
18. Response of calcium hydroxide solution and soda ash solution
Ca2+ + CO32-== CaCO3
19. Barium hydroxide solution and sodium carbonate solution
Ba2+ + CO32-== BaCO3
20. *** Response of copper solution and potassium hydroxide solution
Cu2+ + 2OH-== Cu(OH)2