Please name one substance each: Solid color: Black Red Green Blue Solution color Blu

Solids: Black (ferric oxide) Red ( ) Green (ferrous hydroxide) Blue (bile alum) Solution: blue (copper sulfate) Light green (ferrous chloride) Yellow (ferric chloride) Precipitate:

White (barium sulfate) blue (copper hydroxide) reddish-brown (iron hydroxide) insoluble precipitate is: barium sulfate.

Solid color: carbon, cinnabar, jadeite, sapphire.

Solution color: copper sulfate, ferrous chloride, ferric chloride.

Precipitate color: calcium carbonate, copper hydroxide, iron hydroxide.

Precipitates that are insoluble in water and dilute nitric acid are: silver chloride barium sulfate.

In order: graphite, Fe2O3, ;

CuSO4, FeSO4, FeCl3 in water.

caco3、cu(oh)2、fe(oh)3baso4、agcl

Black (c) red (cu) green (cu2(oh)2CO3) blue (copper sulfate 5-hydrate (blue alum)).

Blue (CuSO4) Light Green (Feci2) Yellow (Feci3) White (AGCI) Blue (Cu(OH)2) Reddish-brown (Fe(OH)3) Insoluble in water and dilute nitric acid precipitation is: AGCI

Color references for common substances in junior high school chemistry.

Black (MnO2), Red (Cu), Green (Cr2O5), Blue (Cu(Oh)2).

Blue (CuCl2), light green (FeCl2), yellow (FeCl3), white (CaCO3, Baso4, AGCL,,, blue (Cu(OH)2), reddish-brown (Fe(OH)3).

baso4,agcl

Carbon, Iron Oxide, Chlorine (Yellow-Green), Copper Sulfate Pentahydrate, Copper Sulfate in Solution, Ferrous Chloride, Ferric Chloride, Precipitate, Silver Chloride, Copper Hydroxide, Iron Oxide, Silver Chloride and Barium Sulfate are insoluble in hydrated dilute nitric acid.

sighed that the chemistry expert upstairs had not been in contact for many years, but Ke Panpan typed a lot of words, and finally deleted it.

D is the light green solution, and G is the blue solution key.

g is cuso4

D is Fe2+ solution, which changes from copper sulfate to ferrous solution, which is obviously the reaction of copper sulfate and iron, so C is Fe and D is FeSo4

b is a gas element; Fe generates FeSO4 and a gas element reaction at the same time, and if you think about it simply, you will know that it is Fe and sulfuric acid reaction, so B is H2 and C is Fe

Fe is burned in oxygen to form Fe3O4, which is A

f is a black solid that becomes cuso4, which is obviously cuo

Then e is CU

a, b, c, d, e, f, and g are: fe3o4, h2, fe, feso4, cu, cuo, cuso4

It may also be CuCl2 that G is possible, but the color of the cuCl2 solution is yellow-green, not authentic blue).

A is carbon, G is manganese, B is iron chloride, and F is copper oxide.

Manganese is a silvery-white metal Upstairs wrong.

Iron hydroxide.

The chemical formula Fe(OH)3 is brown or reddish-brown powder or dark brown flocculent precipitate or colloid, which is used to make pigments and drugs, used as water purification agent (colloidal), and can also be used as an antidote to arsenic.

Brown or reddish-brown powder or dark brown flocculent precipitate, dispersed into colloids under certain conditions. Density. It has amphoteric but its alkalinity is stronger than acidity, and the newly prepared iron hydroxide is easily soluble in inorganic acids and organic acids, and can also be soluble in hot concentrated alkali.

It has amphoteric but its alkalinity is stronger than acidity, and the newly prepared iron hydroxide is easily soluble in inorganic acids and organic acids, and can also be soluble in hot concentrated alkali. Extremely strong oxidants (such as sodium hypochlorite) can oxidize freshly made iron hydroxide into + oxidation state of sodium ferrite Na2FeO4 in an alkaline medium. When heated, it gradually decomposes into iron oxide and water.

Insoluble in water, ether and ethanol, soluble in acid, solubility in acid with the length of time to make, the new soluble in acid, if placed for a long time, it is difficult to dissolve. Iron hydroxide can be used to make pigments, medicines, and can also be used as an antidote to arsenic.

1) Carbon monoxide is flammable and is an oxide that can be used as fuel, and its chemical formula is: CO 2) Ferrous sulfate or ferrous nitrate is dissolved in water, and the solution color is light green, and its chemical formula is FeSO4 respectively

or Fe (NO3

3) Hydrogen is the substance with the smallest relative molecular mass, and its chemical formula is: H24) The substance with the most content in the air is nitrogen, and its chemical formula is: N2, so the answer is: (1) CO; （2）feso4

or Fe (NO3

3）h2（4）n2

1) E is a red solid, E can be known to be copper, E can react with oxygen to form F, so you can know that F is copper oxide and G is a blue solution, you can know that G is a copper salt, the solution of copper salt can be reacted with acid by F, which is consistent with the picture frame, it is a light green backup solution can know that D is a solution of ferrous salt, according to the picture frame, B can be judged to be hydrogen, and then C is iron or acid, but acid cannot be burned, so C is iron element, and A is ferric tetroxide;

2) According to (1), we can know that E is copper, F is copper oxide, A is ferric oxide, and C is iron, so the chemical equation of the reaction can be written;

3) The reaction of F to G is the reaction of copper oxide to copper salt Qi rolling bond, which can only be prepared by metathesis reaction with acid, and cannot be prepared by displacement reaction;

So the answer is: 1)A:Fe3

o4b：h2

c：fe、d：feso4

e：cu、f：cuo、g：cuso4

2）2cu+o2

Gao Qiao. 2cuo；fe3o44h2

High temperature 3Fe+4H2

o 3) No

Potassium permanganate is a purplish-black solid. It's not red. The solution is purple.

In secondary school chemistry, substances related to the color red (both elemental and compound) such as:

Li Huatie is red (also known as iron red).

Elemental copper: purplish red.

Fe(OH)3 is reddish-brown in color.

Ferric chloride is"Sepia wide"It's not"Reddish-brown", its dissolution is yellow.

Copper chloride is"Brown yellow"(or tan) is not red.

Cuprous oxide is red.

(1) If H is a blue solution, then H may be copper sulfate, which can react with G to form a red D, then D may be copper, G may be iron, F is a red solid, and can react with E at high temperature to form iron, then E may be carbon monoxide, F may be iron oxide, B is a black solid, and can react with A to form copper, then B may be copper oxide, A may be carbon, and C may be carbon dioxide, so the answer to this question is: Cuo;

2) Carbon dioxide can be combined with carbon to form carbon monoxide, so the answer to this question is: chemical reaction;

3) Iron oxide can react with carbon monoxide to form iron and carbon dioxide, so the answer to this question is: Fe2O3+3CO high temperature.

2fe+3co2；

4) Iron can react with copper sulfate to form ferrous sulfate and copper, so the answer to this question is: CuSO4+FE Cu+FE4