Hydrochloric acid and nitric acid
H2S bisulfate, sulfite sulfate, bisulfate, bicarbonate,
Phosphate phosphate
Acetic acid (acetic acid) CH3COOH
2 chemical formula of alkali
Potassium hydroxide KOH, sodium hydroxide NaOH, ammonia NH3 H2O
Calcium hydroxide Ca(OH)2, barium hydroxide Ba(OH)2, copper hydroxide Cu(OH)2↓, magnesium hydroxide Mg(OH)2↓, ferrous hydroxide Fe(OH)2↓
Iron hydroxide Fe(OH)3↓, aluminum hydroxide Al(OH)3↓
3 chemical formula of salt
Agcl AgCl↓ KCl KCl NaCl NaCl
Copper chloride CuCl2, magnesium chloride MgCl2, calcium chloride CaCl2, zinc chloride ZnCl2, barium chloride BacCl2 and ferrous chloride FeCl2.
Ferric chloride FeCl3, aluminum chloride AlCl3, cobalt chloride CoCl3.
Sodium sulfate, potassium sulfate, potassium sulfate
BaSO4↓, CuSO4, ZnSO4, CaSO4, MgSO4 and FeSO4.
Ferrous ferric sulfate
Sodium carbonate Na2CO3, potassium carbonate K2CO3, ammonium carbonate (NH4)2CO3
Calcium carbonate CaCO3↓ magnesium carbonate MgCO3 ↓ barium carbonate BaCO3↓ copper carbonate CuCO3↓ zinc carbonate ZnCO3↓ ferrous carbonate FeCO3.
Iron carbonate Fe2(CO3)3, aluminum carbonate Al2(CO3)3.
Sodium nitrate, silver nitrate, potassium nitrate.
Copper nitrate Cu(NO3)2, magnesium nitrate Mg(NO3)2, calcium nitrate Ca(NO3)2, zinc nitrate Zn(NO3)2 and barium nitrate Ba(NO3)2.
Iron nitrate Fe(NO3)3, aluminum nitrate Al(NO3)3
Ammonium chloride NH4Cl, ammonium nitrate NH4NO3, ammonium carbonate (NH4)2CO3 and ammonium sulfate (NH4)2SO4.
Sodium sulfide Na2S, cuprous sulfide Cu2S, potassium iodide KI, zinc bromide ZnBr,
Potassium chlorate KClO3, potassium permanganate KMnO4, potassium permanganate K2MnO4,
Methane (natural gas) CH4, ethanol (alcohol) C2H5OH
Copper rust Cu2(OH)2CO3 and rust Fe2O3.nH2O
The commonness of acid, alkali and salt;
Commonality of acids:
It is corrosive and acidic in solution, and can react with active metals, alkalis, some salts and metal oxides.
Commonality of alkali:
It is corrosive and alkaline in solution and can react with some metals, acids, salts and nonmetallic oxides.
Commonality of salt:
Some salts are slightly corrosive, and the pH value of the solution is determined according to the nature of the salt, which can react with some acids, bases and salts.
It can also react with other compounds.