Reacts with aluminum to produce hydrogen, and what does aluminum react with to form hydrogen?

Reaction with hot water: 2al+6h2o=2al(oh)3+3h2 (slow reaction) and acid reaction: concentrated sulfuric acid at room temperature.

and concentrated nitric acid to passivate aluminum.

Hydrochloric acid and dilute sulfuric acid can be replaced with aluminum.

Salt is produced and hydrogen is released. 2al+6h2o=2alcl3+3h2 2al+3h2so4(dilute)=al2(so4)3+3h2 2al+2naoh+2h2o=2naalo2+3h2

and strong alkali reaction such as: 2al+2naoh+2h2o=2naalo2+3h2 reaction with acid such as: 2al+6hcl=2alcl3+3h2 2al+3h2so4=al2(SO4)3+3H2 but passivated with concentrated sulfuric acid and nitric acid does not release hydrogen reaction with water:

2al+6h2o=2al(oh)3+3h2↑

The acids HCl, H2SO4, and nitric acid do not produce N02ORn0 and then various strong bases NaOH BA(OH)2 produce metaaluminate and hydrogen.

Do you know the reaction of aluminum with oxygen.

1. Aluminum burns in oxygen:

4al＋3o₂=2al₂o₃

2. Aluminum is burned in chlorine gas

2al＋3cl₂=2alcl₃

3. Aluminum and sulfur coheating:

2al＋3s=al₂s₃

4. Reaction of aluminum and dilute sulfuric acid:

2al＋3h₂so₄=al₂(so₄)₃3h₂↑

5. Reaction of aluminum and sodium hydroxide solution

2al＋2naoh＋2h₂o=2naalo₂＋3h₂↑

6. Reaction between alumina and dilute sulfuric acid

al₂o₃＋3h₂so₄=al₂(so₄)₃3h₂o

7. Reaction of alumina and sodium hydroxide solution

al₂o₃＋2naoh=2naalo₂＋h2o

8. Molten solution for electrolytic alumina:

2al₂o₃=4al＋3o₂↑

9. Reaction of aluminum hydroxide with dilute sulfuric acid

2al(oh)₃ 3h₂so₄=al₂(so₄)₃6h₂o

10. Reaction of aluminum hydroxide and sodium hydroxide solution

al(oh)₃ naoh=naalo₂＋2h₂o

11. Heating aluminum hydroxide:

2al(oh)₃=al₂o₃＋3h₂o

12. Aluminum sulfate solution mixed with barium chloride solution

al₂(so₄)₃3bacl₂=2alcl₃＋3baso₄↓

13. The aqueous solution of aluminum sulfate is acidic

al₂(so₄)₃6h₂o=2al(oh)₃ 3h₂so₄

14. Add a small amount of sodium hydroxide solution to the aluminum sulfate solution

al₂(so₄)₃6naoh=3na₂so₄+2al(oh)₃↓

15. Add a sufficient amount of sodium hydroxide solution to the aluminum sulfate solution

al₂(so₄)₃8naoh=2naalo₂＋3na₂so₄＋4h₂o

16. Add a small amount of barium hydroxide solution to the aluminum sulfate solution

al(so) 3ba(oh)2=2al(oh) 3baso

17. Add a sufficient amount of barium hydroxide solution to the aluminum sulfate solution

al₂(so₄)₃4ba(oh)₂=ba(alo₂)₂3baso₄↓＋4h₂o

18. Add a small amount of barium hydroxide solution to the alum solution

3ba(oh)₂ 2kal(so₄)₂2al(oh)₃↓3baso₄↓＋k₂so₄

19. Add sodium hydrosulfide solution to aluminum sulfate solution for slow burial

al₂(so₄)₃6nahs＋6h₂o=2al(oh)₃↓3na₂so₄＋6h₂s↑

20. Add sodium metaaluminate solution to the lead returned to the aluminum sulfate solution

al₂(so₄)₃6naalo₂＋12h₂o=3na₂so₄＋8al(oh)₃↓

<>1. Late arrival of hot water. Aluminum powder reacts with hot water to produce hydrogen and aluminum hydroxide.

2. Dilute sulfuric acid. Aluminum powder and dilute sulfuric acid react to produce aluminum sulfate and hydrogen gas.

3. Sodium hydroxide.

Aluminum powder and sodium hydroxide react with hydroponics to form sodium metaaluminate and hydrogen.

<>1. Hot water. Aluminum powder reacts with hot water to produce hydrogen and hydroxide Hongfan aluminum.

2. Tung digging dilute sulfuric acid. Aluminum powder reacts with dilute sulfuric acid to produce aluminum sulfate and hydrogen.

3. Sodium hydroxide. Aluminum powder and sodium hydroxide react with water to form metaaluminic acid shield, hail sodium and hydrogen.

We can know from the chemical reaction equation that 1) in the case of acid-base excess, the ratio of the volume of hydrogen produced is 1 1

The volume of hydrogen produced is controlled by the amount of aluminum).

2) In the case of insufficient acid-base, we find that the ratio of the volume of hydrogen produced by acid-base with the same amount of substance is 1 3

The volume of hydrogen produced is controlled by the amount of acid or base. More precisely, it is controlled by the amount of hydrogen in the acid base. )

That's why the two figures given in the title are given.

In less than 1 1 (when thinking about the limit when this ratio is very close).

The hydrogen produced by the reaction with the alkali is 1, and the hydrogen produced by the reaction with the acid is very close to 1, which is less.

The dot is acid So when aluminum reacts with hydrochloric acid, there is too much aluminum and not enough hydrochloric acid.

Here I will illustrate with specific data.

Let the acids and bases be 6 and the aluminum is 3, and the reaction between aluminum and acid consumes 3 aluminum and 6 acids to generate 3 hydrogen.

Aluminum reacts with alkali, consumes 3 aluminum and 3 alkalis, and generates 3 hydrogen.

If there is a little less acid, then the hydrogen produced is less than 3.

Then it's less than 1 1

We have already analyzed that if the acidity and alkali are insufficient, then the amount of hydrogen produced is related to the amount of acid-base substance. Then it must be equal to 1 3

Then greater than 1 3 indicates that h in sodium hydroxide has not been completely converted into hydrogen. Other words.

Sodium hydroxide overdose.

Set 6 acids and alkalis and 3 aluminum.

Aluminum reacts with acid, consuming 3 aluminum and 6 acids to produce 3 hydrogen.

Aluminum reacts with alkali, consumes 3 aluminum and 3 alkalis, and produces hydrogen.

If there are 3 more aluminum, continue to consume 3 alkalis to generate hydrogen.

Then it reaches 1 3

So the conclusion holds.

Aluminum is an amphoteric substance, so hydrogen can be produced by reacting with strong acids or bases.

Strong acids include permanganic acid, hydrochloric acid, sulfuric acid, nitric acid, perchloric acid, wild worm laughing selenium Zen acid, hydrobromic acid, hydroiodic acid, chloric acid, etc.

Strong bases include sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, calcium hydroxide, strontium hydroxide, barium hydroxide, etc.

Aluminium hydroxide is thermally decomposed to produce alumina and water.

There are many preparation methods for aluminum hydroxide, such as Bayer method, soda lime sintering method, ammonium bicarbonate method, etc., because alumina is an amphoteric oxide that is insoluble in water, and aluminum hydroxide is an amphoteric hydroxide that is insoluble in water, which can be soluble in strong Yunyuan slow acid and strong alkali, but will not be soluble in ammonia (weak alkali) and will not be soluble in carbonic acid (weak acid). Therefore, alumina can be dissolved in sulfuric acid to obtain aluminum sulfate solution, and then the cavity guess to add excess ammonia to the aluminum sulfate solution to obtain aluminum hydroxide precipitation, filtering, washing, and drying.

Aluminum hydroxide can react with acids to form salts and water, and with strong bases to form salts and water.

Aluminum hydroxide, is the hydroxide of aluminum. Aluminum hydroxide can react with acids to form salts and water and strong bases to form salts and water, so it is also an amphoteric hydroxide. It is a hydroxide of aluminum.

Because it is acidic, it can also be called aluminic acid. However, when it actually reacts with the alkali, it is tetrahydroxyl aluminium that is formed. Therefore, it is usually regarded as metaaluminic acid monohydrate, which is divided into industrial grade and pharmaceutical grade according to its use.

Aluminum hydroxide is a typical and commonly used antacid with antacid, adsorption, local hemostasis and ulcer surface protection. Aluminum hydroxide has a chemical reaction to neutralize or buffer the gastric acid already present in the stomach, but has no direct effect on the secretion of gastric acid, and its antacid effect is slow and long-lasting. The neutralizing and buffering effect of aluminum hydroxide can lead to an increase in the pH of the gastric contents, thereby alleviating the symptoms of gastric hyperacidity.

However, it should be pointed out that the ability to neutralize acids is lower than that of magnesium-containing preparations and calcium carbonate, and higher than that of aluminum carbonate and sodium dihydroxyl carbonate. When aluminum hydroxide interacts with gastric acid, the aluminum chloride produced has an astringent effect and can stop bleeding locally, but it may also cause constipation.

The ionic equation 2 al + 2 oh- +2 h2o = 2 alo2- +3 h2 guess the plexus bridge.

For example, with sodium hydroxide 2 al + 2 naoh + 2 h2o = 2 naalo2 + 3 h2