1, phosphorus burns 4P+5O22P2O5 in oxygen.
2.Fe burns 3Fe+2O2Fe3O4 in O2.
3.Al reacts with O2 4Al +3O2=2Al2O3.
4. When oxygen is insufficient, carbon burns 2C+O2 2CO.
5. Carbon burns C+O2 CO2 in sufficient oxygen.
6. Hydrogen ignites 2H2+O22H2O in oxygen.
7. Methane (natural gas) burns CH4+2O2CO2+2H2O in the air.
8. Sulfur burns in oxygen: S+O2SO2.
9. Electrolytic water test: 2h2o2h2 =+O2 =
10, reduction of copper oxide H2+ Kuku +H2O by hydrogen
1 1, reduction of iron oxide 3H2+ Fe2O32Fe+3H2O by hydrogen.
Hydrogen reduction of 12, Fe3O4+ 4H23Fe+4H2O.
13, CO reduction of copper oxide CO+ CuOCu+CO2.
14, carbon monoxide reduces iron oxide 3CO+ Fe2O32Fe+3CO2.
15, Fe3O4+4CO3Fe+4CO2 reduced by carbon monoxide.
16, carbon reduction of copper oxide C+2cuo2cu+CO2 =
17, carbon reduced iron oxide 3c+2fe2o34fe+3co2 =
18, carbon reduction of ferroferric oxide 2C+Fe3O43Fe+2co2 =
19, heating potassium permanganate to produce oxygen 2KMnO4 K2MnO4+ MnO2+ O2↑ =
20, heating potassium chlorate and manganese dioxide solid oxygen 2KClO3 2KCl+3O2↑ write.
2 1, H2O2 and H2O2+O2 are catalyzed by manganese dioxide.
22, laboratory carbon dioxide CaCO3+2 HCl = CaCl2+H2O+CO2 write.
23, laboratory hydrogen Zn+H2SO4 = ZnSO4+H2 write.
24. The reaction between sodium carbonate and hydrochloric acid: Na2CO3+2HCl = 2NaCl+H2O+CO2 =
25, sodium bicarbonate and hydrochloric acid reaction nahco3+HCl = NaCl+CO2 write+H2O.
26, sodium hydroxide and hydrochloric acid reaction (acid-base neutralization) NaOH+HCl==NaCl+ H2O.
27, alumina and hydrochloric acid reaction Al2O3+6HCl=2AlCl3+ 3H2O.
28, iron oxide and hydrochloric acid reaction Fe2O3+6HCl==2FeCl3+3H2O.
29, carbon dioxide dissolved in water = CO2+H2O = h2co 3.
30. Carbon dioxide makes clear limewater turbid. CO2+Ca (OH) 2 = = = CaCO3 ↓+H2O。
3 1, carbon dioxide and sodium hydroxide solution react CO2+CO2+2NaOH ==== Na2CO3+H2O+H2O.
32, iron and hydrochloric acid reaction Fe+2 HCl = FeCl 2+H2 write
33, aluminum and hydrochloric acid reaction 2al+6 HCl = 2alcl3+3h2 write.
34, zinc and hydrochloric acid reaction Zn+2 HCl = ZnCl2+H2 write
35, magnesium and hydrochloric acid reaction mg+2 HCl = MgCl2+H2 write
36, iron and sulfuric acid reaction Fe+H2SO4 = FeSO4+H2 write
37, aluminum and sulfuric acid reaction 2al+3H2SO4 = Al2 (SO4) 3+3H2 write.
38, magnesium and sulfuric acid reaction mg+H2SO4 = mgso4+H2 write
39, zinc and sulfuric acid reaction Zn+H2SO4 = ZnSO4+H2 write
40. magnesium burns Mg+O22MgO in the air.
4 1, the reaction of iron with copper sulfate Fe+CuSO4=FeSO4+Cu.
42, the reaction of copper and silver nitrate Cu+2AgNO3 =Cu(NO3)2+2Ag
43. Alcohol burns C2H5OH+3O22CO2+3H2O in the air.