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Salt
This is a mind map about salt. Salt refers to a type of compound in which metal ions or ammonium ions (NH4) are combined with acid ions or non-metal ions.
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Salt
- bacteria
This is a mind map about bacteria, and its main contents include: overview, morphology, types, structure, reproduction, distribution, application, and expansion. The summary is comprehensive and meticulous, suitable as review materials.
- Plant asexual reproduction
This is a mind map about plant asexual reproduction, and its main contents include: concept, spore reproduction, vegetative reproduction, tissue culture, and buds. The summary is comprehensive and meticulous, suitable as review materials.
- Reproductive development of animals
This is a mind map about the reproductive development of animals, and its main contents include: insects, frogs, birds, sexual reproduction, and asexual reproduction. The summary is comprehensive and meticulous, suitable as review materials.
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- Outline
Salt
definition
Compounds composed of metal ions or ammonium ions and acid ions
Classification
cation
sodium salt
potassium salt
calcium salt
Ammonium salt
anion
Sulfate
carbonate
Nitrate
Oxygen
Oxylate
Anaerobic acid salt
Sodium chloride (Nacl)
physical properties
White crystal, easily soluble in water, salty taste
use
medical
Prepare saline solution
agriculture
Selection
industry
raw material
sodium
chlorine
Life
pickled
Remove snow
Preparation
Dry seawater or boil lake water, and evaporate the salt well water to remove the moisture to obtain coarse salt.
Coarse salt dissolution, precipitation, filtration, evaporation, crystallization and purification
carbonate, bicarbonate
basic concept
Sodium carbonate
Commonly known as
Soda ash, soda
physical properties
White powdery solid
soluble in water
aqueous solution alkaline
chemical properties
reacts with acid
reacts with calcium hydroxide
use
Glass, paper, textiles, detergents
sodium bicarbonate
Commonly known as
baking soda
physical properties
white solid
soluble in water
aqueous solution alkaline
chemical properties
reacts with acid
Thermal decomposition
use
baking powder
Treat hyperacidity
calcium carbonate
Commonly known as
Main components of marble and limestone
physical properties
white solid
Hardly soluble in water
chemical properties
reacts with acid
Pyrolysis
use
Building materials, calcium supplements
reacts with acid
Sodium carbonate and dilute hydrochloric acid react to form carbon dioxide
The reaction is rapid, bubbles are generated in the test tube, and the clear lime water becomes turbid.
Sodium bicarbonate and dilute hydrochloric acid react to form carbon dioxide
The reaction is faster, bubbles are generated in the test tube, and the clear lime water becomes turbid.
Testing method for carbonate or bicarbonate
Containing carbonate or bicarbonate can react with hydrochloric acid to produce carbon dioxide, making clear limewater turbid.
Reaction of sodium carbonate and clarified lime water
properties of salt
Solubility
Potassium, sodium, ammonium and nitrate are all soluble
Insoluble in water and acid
silver chloride
Barium sulfate
color
white solid
Salt solutions containing copper ions turn blue
Salt solution containing ferrous ions
Salt solution containing iron ions
chemical properties of salt
salt metal = new salt new metal
Salt must be soluble in water
The metals that react with salts are more reactive than the metal elements in the salt solution.
Except K, Ca, Na
Hydrochloric acid = new salt new acid
solid can
salt base = new salt new base
reactants dissolve in water
salt salt = new salt new salt
reactants dissolve in water
The product has at least one precipitate