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The characteristic of acids is that the positive ions that come out of ionization can only be H positive ions, for example.
HCl is an acid, and NaHSO4 is not an acid because it can ionize H, but it has a NA cation;
The same is true for alkalis, which are OH negative ions, for example.
NaOH is a base and Ba(OH)2 is a base.
Salt is the product of the reaction between acid and base, called salt (not the salt you eat at home, although that salt is NaCl, which is also a chemically defined one), for example, NaCl, we can think that it is obtained by the reaction of HCL and NaOH.
The process of reaction between acids and bases is called metathesis reaction, and the reaction can occur if there is a precipitate (such as Baso4) in the resulting product, or a gas (such as CO2) or a weak electrolyte (such as H2O).
h2so4 + ba(oh)2 = baso4(chendian)+2h2o
caco3 + 2hcl = cacl2 + co(qiti) +h2o
hcl + naoh = nacl+ h2o
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Are there a lot of concepts? You should have learned acid ions before, the cations in sulfuric acid (H2SO4), hydrochloric acid (HCl), and nitric acid (HNO3) are all hydrogen ions, and this substance is acid. As for alkalis, it's better to remember, as long as there are hydroxide ions or hydroxides, they are all bases.
Salt is a substance in which the cation is a metal ion or ammonium ion, and the anion is an acid ion.
Acid and base react to produce salt and water: NaOH+HCl====NaCl+H2O
The acid and salt react to produce new acid and new salt: HCl + AGnO3 ====AGCl + HNO3
The reaction of the base and the salt (both to be soluble) produces a new base and a new salt: 2NaOH+CuSO4====Cu(OH)2+Na2SO4
Salt and salt (both to be soluble) react to produce two new salts: CaCl2 + Na2CO3 == CaCO3 + 2NaCl
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The positive ion is an acid that is h.
The negative ion is OH and is the base.
Water doesn't count. The other is salt (in electrolytes).
After the two meet, H and OH combine to form H2O
Then the other two are combined into salt.
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Ionization theory of acid-base:
Acids: Compounds in which all cations produced during ionization are hydrogen ions. For example: H2SO4 (sulfuric acid), HCl (hydrochloric acid), HNO3 (nitric acid), H2CO3 (carbonic acid).
Base: The anions produced during ionization are all compounds of hydroxide ions. For example: NaOH (sodium hydroxide), KOH (potassium hydroxide), Ca(OH)2 (calcium hydroxide), NH3·H20 (ammonia).
Salts: Compounds containing metal cations (or NH4 ammonium) and acid ions are formed when ionized. Examples: Na2CO3 (sodium carbonate), CuSO4 (copper sulfate), NH4NO3 (ammonium nitrate).
Compounds formed only by the combination of hydrogen ions and acid ions are acids.
Compounds formed by the combination of metal ions and acid ions are salts, not always of which is the case.
The compound formed by the combination of metal ions and hydroxide ions is a base.
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Acid can ionize hydrogen ions, alkali can ionize hydroxide ions, and salts contain metal ions and acid ions.
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Acid: The cation produced during ionization is a compound that is all hydrogen ions, called acid.
Base: The anions produced during ionization are all hydroxide ion compounds, called bases.
Salt: A compound of acid ions and metal ions, called salts.
1. Common acids include hydrochloric acid, nitric acid, sulfuric acid, etc., and their general properties are: 1 >>>More
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Analysis can be seen. 1) The precipitate must be Baso4 or BaCO3 (BaSo4 is generated by Na2SO4 and BaCl2). >>>More
Compounds that are formed when ionized are all hydrogen ions are called acids. Such as H2SO4, HNO3, HCl, etc. are all acids. >>>More
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