Copper ions will never separate when they meet hydroxyl groups.
When the solution is golden yellow, because iron is trivalent
Light green and fake ferrous iron are fascinating.
Calcium carbide sneaks around to produce acetylene gas.
After ignition, the acetylene flame becomes a high temperature of several thousand degrees.
Evaporating carbon dioxide
Lime water adorns the white sink.
Benzene is not easy to change color when it meets potassium permanganate.
Nitro groups are added to toluene. Watch out for tnt.
How beautiful the purple color of iodine molecules in benzene is.
This laid the foundation for extraction.
The electrolyte of the electrolytic cell is electrified through the anode and the cathode.
The price is transferred from high and low electrons.
Refining copper, iron, zinc, manganese, nickel, chromium, aluminum, silver and tin.
Leave anode mud
Dilute concentrated sulfuric acid into water droplets
Slowly pour the stirring hand along the wall.
Immediately wash the skin with plenty of water and concentrated acid.
Use sodium bicarbonate for emergency treatment.
Glycerol moisturizes the skin smooth and delicate.
Slaked lime has a proper pH value when it enters the soil.
Look how beautiful the test paper is.
There's a smile in your eyes
The blue-purple sediment jumped to the bottom of the test tube.
Copper ions will never separate when they meet hydroxyl groups.
When the solution is golden yellow, because iron is trivalent
Light green ferrous iron is fascinating.
Calcium carbide sneaks around to produce acetylene gas.
After ignition, the acetylene flame becomes a high temperature of several thousand degrees.
Evaporating carbon dioxide
Lime water adorns the white sink.
(Benzene series)
Benzene is not easy to change color when it meets potassium permanganate.
Nitro groups are added to toluene. Watch out for TNT.
How beautiful the purple color of iodine molecules in benzene is.
This laid the foundation for extraction.
(electrochemistry)
The electrolyte of the electrolytic cell is electrified through the anode and the cathode.
The price is transferred from high and low electrons.
Refining copper, iron, zinc, manganese, nickel, chromium, aluminum, silver and tin.
Leave anode mud
(diluted with concentrated acid)
Dilute concentrated sulfuric acid and inject it into water.
Slowly pour the stirring hand along the wall.
Immediately wash the skin with plenty of water and concentrated acid.
Application of charcoal sodium hydroxide in emergency rescue.
(Actual output)
Glycerol moisturizes the skin smooth and delicate.
Slaked lime has a proper pH value when it enters the soil.
Look how beautiful the acid red alkali purple test paper is.
There's a smile in your eyes
Remember to add zeolite during distillation.
Otherwise, something will happen.
Brother tried it himself.
Almost scared to death
Boiling time of solution
I can't help it.
Mercury and reagents are sprayed everywhere.
You pour sulfuric acid into it.
I'm watching from outside.
Suddenly you're soft.
Right in your hands.
Your soul is moving away
Go where I can't go
Sky blue and other misty rain
You passed out.
Smoke rises from seven holes.
Soul floating in Wan Li.
Although the sulfuric acid concentration is relatively low this time
Nor can it be used to decorate the body.
Blue face, sweating like a pig.
You're dragged down.
Rinse with plenty of water
It should be no problem
If you are not at ease, get some baking soda.
Pay attention next time.
There are instruments in the chemistry building.
You are welcome to use it.
There are reagents in the laboratory.
Take it indiscriminately and you will be criticized.
Coke, orange juice and sprite.
The teacher disagreed.
Of course, you can sneak it in
Use volatile reagents
In the fume hood
You took a breath.
Life is hard to go on.
You seem to see God.
It's like being struck by lightning under a tree.
Blue face with thunderstorm
The teacher is waiting for you
I forgot to clean the instrument.
Desktop not cleaned
The mercury in the broken thermometer under the table.
Do you want to send us to God?
Instruments in the drawer
Place it neatly.
Laboratory reagent
Reasonable placement
Remember to be careful when using toxic reagents.
Don't get yourself killed.
Sky blue and other misty rain
You passed out.
Smoke rises from seven holes.
Soul floating in Wan Li.
Although the sulfuric acid concentration is relatively low this time
Can't be used to decorate the body and face.
You're dragged down.
Rinse with plenty of water
It should be no problem
If you are not at ease, get some baking soda.
Pay attention next time.
-
At the bottom of the transparent blue test tube,
The unexpected encounter between copper ions and metallic sodium,
A colorful and gorgeous reaction continued.
Two equations are fascinating;
There is no nee to worry about that metal reaction of anhydrous sodium ethoxide,
In order to produce sodium alkoxide, the only hydroxyl group is destroyed.
The reaction was quite thorough,
There's no sign of any solids.
Gently put aluminum metal into a test tube,
Pour the liquid slowly, pay attention to the tilt,
It is somewhat different from acid-base phenomenon.
Finally, it can be ionized;
Simple iron vapor reacts with hydrogen,
The generated oxide attracts magnets,
Culture insoluble substance by aluminothermic method,
Created a miracle.
Organic compounds are the most difficult and interesting isomers.
The addition reaction between halogen and alkane is ineffective,
The included angle between valence bonds of methane structure,
It is very close to170;
The simpl name of unsaturated hydrocarbon is ethylene,
Molecular formula 28 is like carbon monoxide gas,
Addition reaction with bromine water,
How easy it is to be unconditional.
One mole of gas, fixed volume,
Coefficient ratio of equation, equally good memory,
In order to determine whether the reaction is reversible,
Tracer atoms play a powerful role;
In industrial production, efficiency is very important.
There are not only ways to accelerate or decelerate,
Changes in concentration and temperature should be considered.
Find the catalyst.
In the substitution reaction, esterification should be remembered.
Removing hydrogen atoms from alcohols, removing hydroxyl groups from carboxylic acids,
When heated, the sulfuric acid catalytic reaction continues.
The temperature should be kept at 77;
Laboratory rules, don't doubt,
When taking medicine, safety should be the first priority.
You can't take non-toxic drugs,
Be careful that you will be criticized.