Question

Al>Al2O3>Al2(SO4)3>Al(OH)3>AlCl3

Answer 1

Al>Al2O3>Al2(SO4)3>Al(OH)3>AlCl3

4Al + 3O2 = 2Al2O3 - оксид алюминия

Al2O3 + 3H2SO4 = Al2(SO4)3 сульфат алюминия + 3H2O

Al2(SO4)3 + 6NaOH = 2Al(OH)3↓ гидроксид алюминия+ 3Na2SO4 сульфат натрия

Al(OH)3 ↓ + 3HCl = AlCl3 хлорид алюминия + 3H2O

Answer 2

It seems like you've listed a series of chemical compounds involving aluminum (Al). The ">" symbol typically represents an increasing order of some property or characteristic. Based on the compounds you've provided, it looks like you're comparing the solubility or acidity of these aluminum compounds. In general, the list you've provided is not entirely accurate, so let me correct and explain the order based on solubility and acidity:

1. AlCl3 (Aluminum chloride) - This compound is highly soluble in water and forms a strong acidic solution due to the presence of Cl- ions.

2. Al2(SO4)3 (Aluminum sulfate) - This compound is moderately soluble in water and can dissociate to form aluminum ions and sulfate ions. It also contributes to the acidity of the solution to a lesser extent compared to AlCl3.

3. Al(OH)3 (Aluminum hydroxide) - Aluminum hydroxide is considered amphoteric, meaning it can act as both an acid and a base. In pure water, it forms a gelatinous precipitate that is not very soluble, but it can dissolve in acidic or basic solutions, behaving as either an acidic or basic compound.

4. Al2O3 (Aluminum oxide) - Aluminum oxide is mostly insoluble in water and does not significantly affect the acidity of the solution.

It's important to note that the solubility and acidity of these compounds can be influenced by various factors such as pH, temperature, and the presence of other substances in the solution. So, the order of their properties may vary depending on the specific conditions.

If you have a specific context or question about these compounds, feel free to ask for more detailed information.