Chemistry Talent, Question Electrochemistry, Chemistry,

The best way is to store the silver chloride in the dark, put it in a brown reagent bottle, and store it in a dark room, so that the reaction can be slowed down, which is the most direct and effective way.

Adding cl2 is useless, at least the effect is not visible.

Kinetically, the photodecomposition of silver chloride is a very fast reaction, and its reverse reaction is very slow compared to the positive reaction. Even the addition of chlorine does not significantly change the rate of the reverse reaction.

Copper chloride copper chloride accelerates the reverse reaction at the same time, which is the effect of the catalyst, the catalyst changes the activation energy of the reaction, so if you want to slow down the reaction, you can add a catalyst that can increase the activation energy of the reaction, but this kind of catalyst is not very useful, no one has studied it, so I don't know what to use.

The landlord hopes to achieve the goal through the means of catalytic chemistry, although there are many advantages to doing so, but when catalytic chemistry is studied, it is very purposeful, and it is all about studying specific catalysts for certain useful reactions.

As for something like silver chloride, it is estimated that no one has studied it, so people may not know about its catalyst.

I don't know if my landlord is still satisfied, although I didn't follow the landlord's requirements.

Depressed! Silver chloride is, of course, white!!

Molecular formula: AGCL

Brief description: white powdery crystals.

CAS Number: 7783-90-6

Physical Characteristics Phase: Solid.

Color: White, the color becomes darker under the action of light (see light turns purple and gradually turns black).

Add Cl2 to inhibit the reaction to proceed in the positive direction.

Silver chloride seems to be white.

Let's say that the side becomes black is AG2O.

I forgot about it.

H2S+4Na2O2+2H2O===Na2SO4+6NaOHfeO+4HNO3===Fe(NO3)3+NO2+2H2ONa2O2+2Na===2Na2O (This reaction is used to prepare Na2O)Al2O3+3H2SO4===Al2(SO4)3+3H2OAL2O3 is an amphoteric oxide:

Al2O3+2NaOH===2Naalo2+H2O)FeO+2HCl===FeCl2+3H2ofe2O3+6HCl===2FeCl3+3H2ofe2O3+3H2S(g)==Fe2S3+3H2OFe3O4+8HCl===FeCl2+2FeCl3+4H2O...

The reaction of the chemical upstairs has been given. He said he didn't come up with a decomposition, but I have one here.

A reaction that I learned at the beginning of junior high school. cu2（oh）2co3=2cuo+h2o+co2。

The reaction of the battery when selecting B is discharged: Li+LiMN2O4==Li2Mn2O4 is the oxidation reaction.

When charging, it is a reduction reaction.

Use the difference method. Solution: CH4 (gas) + 2O2 (gas) = = CO2 (gas) + 2H2O (liquid).

1/x =（1+2-1）/（a/4）

x=a 8ml

then COV = 7A 8ml

Because of complete burning.

2co+o2==2co2

a/8*2+7a/8*1/2=b

then 9a = 16b

, just do the math.

Is there a problem with option d?

2.Cathode: Cu2+2E=Cu

Anode: 2oh-4e=O2

So ncu=

and b in **?

4.Right. Zn loses electrons more easily than Fe, so Fe is not oxidized while Zn is oxidized.

According to the inscription, it can be known that the acid is excessive, the iron has been dissolved, and the impurities do not react. The mass of the solution weight gain is: This is because the reaction of iron with dilute sulfuric acid makes the solution weight gained, and the reaction formula is.

Let the mass of the iron be xg

Fe + H2SO4 = FeSo4 + H2 (gas) weight gain 56 2 54x

x=The purity of iron is:

Since impurities do not react, then assuming that 10 grams of iron without impurities and 100 grams of dilute sulfuric acid react to produce 110 grams of substance, since there are impurities, then 10 grams of iron will only react after the reaction).

And then the purity of the iron is ... I'm also playing around.

The total mass of the iron and sulfuric acid solution minus the mass of the solution after the reaction is the mass of the reaction to produce hydrogen, so that the mass of iron can be known from the chemical equation, so that its purity can be obtained.

is the added mass of the solution.

FeSO4 is 152, H2SO4 is 98, and the difference of 54 is poor quality. So so the iron is 56* so the purity is 54% is not true.

N-methylation should be linked to -NH2 with a methyl group, -NH-CH3, which reacts with hydrocarbons.

Methylation is the reaction with hydrocarbons, such as the methylation or alkylation of benzene.

The former is the substitution of hydrogen on nitrogen by methyl groups.

The latter generally defaults to the substitution of hydrogen on carbon with methyl groups.