Who can type out all the knowledge and concepts of junior high school chemistry?

It's still not complete, hehe

Organic compounds were not written

Hydrogen (H) Helium (He).

Lithium (Li) Beryllium (BE).

Boron (b) carbon (c).

Nitrogen (N) Oxygen (O).

Fluorine (f) neon (Ne).

Sodium (Na) magnesium (mg).

Aluminum (Al) silicon (Si).

Phosphorus (P) Sulfur (S).

Chlorine (Cl) argon (Ar).

Potassium (K) calcium (Ca).

Manganese (Mn) Iron (Fe).

Copper (Cu) Zinc (Zn).

Bromine (br) krypton (kr).

Silver (Ag) Tin (sn).

Iodine(I) xenon (Xe).

Caesium (CS) barium cherry blossom Bi (ba)).

Tungsten Rock Sail (W).

Platinum (PT) Gold (Au).

Mercury coarse hail (HG).

Lead (Pb).

Chemical terms.

1) Relative atomic mass and relative molecular mass, molecular-atomic motion theory, and extranuclear electron arrangement.

2) The meaning of the element symbol.

An element.

One atom of this element.

If a substance is directly constituted by atoms, the elements that make up the substance can also represent this elemental substance, such as: , s, p, etc.

3) Valency: The number of atoms of an element that are combined with each other determines the valency of this element.

The valency is closely related to the number of electrons in the outermost shell of the atom; In a compound, the algebraic sum of the positive and negative valency of the elements is zero; The valence of the elements in the element is specified as zero price.

4) Chemical formula: The formula that uses element symbols to represent the composition of matter.

5) Chemical equation: The chemical formula is used to represent the formula of a chemical reaction. Pay attention to the principles of writing, steps, trim, reaction conditions, correct use of arrows.

The name alias the chemical symbol.

Phosphorus pentoxide is P5O2

Carbon dioxide is CO2

Carbon monoxide is CO

Sodium carbonate, soda ash, soda, trona, and mouth alkali are all NaHCO3 sodium bicarbonate, and baking soda is NaHCO3

Sodium thiosulfate, baking soda is Na2S2O3

Calcium sulfate, gypsum (raw gypsum) is.

Barium sulfate, barite is baso4

Ammonium bicarbonate, ammonium carbonate is NH4HCO3

Calcium carbonate, limestone, marble are caCO3

Calcium oxide, quicklime is cao

Calcium hydroxide, hydrated lime, slaked lime is Ca(OH)2 sodium hydroxide, caustic soda, caustic soda, caustic soda is NaOH

Carbon dioxide, dry ice is CO2

Carbon monoxide is CO

Silica, silica, quartz are SiO2

Aluminium oxide, corundum is Al2O3

Sodium silicate, sodium silicate, bubble alkali, mineral gum is NaSO3 ferric oxide, iron red, and iron ore is Fe2O3

Ferric tetroxide, magnetite is Fe3O4

Ferrous carbonate, siderite is FeCO3

Copper oxide, cuprite is Cu2O

Cuprous oxide is cuo

Ferrous oxide is FEO

Ammonia is NH3

Hydrochloric acid is HCl

Nitric acid is Hno3

Potassium permanganate is KMno4

Sulfur dioxide is SO2

Sulfur trioxide is SO3

Sodium oxide is Na2O

Sodium peroxide is Na2O2

Sodium hydroxide is NaOH

Sulfuric acid is H2SO4

Barium chloride is BaCl2

Silver chloride is AGCL

I don't need to say anything else

It's all in the books

In fact, it is the first 20 element symbols of the periodic table.

1 2 mg

2 Composition of a pair of common electron pairs: hydrogen atom deviates from the nucleus of the atom apparently positive monovalent, chlorine atom manifests negative monovalent 3 (NH4)2SO4 ammonium sulfate, NH4HCO3 ammonium bicarbonate (NH4)2CO3, ammonium carbonate, KOH potassium hydroxide.

4 I don't know.

5 Heat and stir the third unexpected.

6 Didn't understand the question.

7 There should be a catheter Put the single-hole rubber plug into the mouth of the test tube Rubber plug the upper chamber catheter Put the catheter into the water at one end Heat the test tube to see if there are any bubbles coming out.

8 In the same way, connect the instrument, plug the hole of a rubber stopper, put the funnel into another hole, add water to the funnel, and see if the liquid level is lowered.

1 2mg x2 e.g. O2 is an oxygen molecule with two oxygen atoms in 2 shared electron pairs?

3 (nh4)2so4 nh4hco3 (nh4)2co3 koh

4 Melting? 5 With powder, increase the area of stirring heating or low temperature 6 ?

7 Connect the device, add a catheter, and put the other end in the water Hold the tube with your hand to see if there are any bubbles or if some liquid level has entered the catheter after your hand leaves the tube.

8 Seal the long-necked funnel and add a catheter to the other hole and put it in the water. Add some water to the funnel and see if it gets into the tube.

9 Much more to pay attention to ...

Ammonium sulfate, NH4HCO3, ammonium bicarbonate (NH4), 2CO3, ammonium carbonate, KOH potassium hydroxide.

Heat and stir to increase the dissolved area6

(1) Write the chemical reaction equation, it is easy to see!

2) Zn + H2SO4 == ZnSO4 + H2---65---2 (equal to valency).

--mg---m

65/2 == m/m ==> m == 2m/65

？？？I was confused, I didn't understand, so I would like to talk about it in detail.