If H2SO4 were added to the following, would it form a salt, if so what is the name of the salt?
NaCl
Ca(OH)2
Hf
AlCl3
H2O
Mg(OH)2
If Hf supposed to be hafnium metal, or did you mean HF?
Only the hydroxides will react to form salts. The MgSO4 will precipitate out, but the CaSO4 may remain in solution until enough water is evaporated to saturate the solution.
DrBob222 will correct me if I am wrong
I expect Hf is supposed to be HF.
Both Ca(OH)2 and Mg(OH)2 will form salts with H2SO4 as DrWLS wrote.
To determine whether a salt will form when H2SO4 is added to a compound, it is essential to understand the concept of acid-base reactions and the formation of salts.
When an acid (such as H2SO4) reacts with a base, a salt and water are typically formed. In this case, H2SO4 is a strong acid, and it will react with bases to produce salts.
Let's analyze each compound and see if a salt will form:
1. NaCl (sodium chloride): Sodium chloride is already a salt, and it is formed when the strong acid HCl reacts with the strong base NaOH. So, adding H2SO4 to NaCl would not result in the formation of a new salt.
2. Ca(OH)2 (calcium hydroxide): Calcium hydroxide is a base. When reacted with H2SO4, it will produce calcium sulfate (CaSO4), a salt. So, the salt formed would be calcium sulfate.
3. Hf (hafnium): Hafnium is a transition metal element, and it does not react with acids to form salts. So, no salt will form when H2SO4 is added to Hf.
4. AlCl3 (aluminum chloride): Aluminum chloride is already a salt. It is formed from the reaction of aluminum oxide with hydrochloric acid (HCl). Therefore, adding H2SO4 to AlCl3 would not result in the formation of a new salt.
5. H2O (water): Water is neither a base nor an acid. It is a neutral compound, and it does not undergo an acid-base reaction to form salts.
6. Mg(OH)2 (magnesium hydroxide): Magnesium hydroxide is a base. When reacted with H2SO4, it will produce magnesium sulfate (MgSO4), a salt. So, the salt formed would be magnesium sulfate.
In conclusion, when H2SO4 is added to the compounds mentioned:
- A salt would not be formed with NaCl and AlCl3 because they are already salts.
- The salt formed with Ca(OH)2 would be calcium sulfate (CaSO4).
- The salt formed with Mg(OH)2 would be magnesium sulfate (MgSO4).
- Hf does not react with H2SO4 to form a salt.
- Water (H2O) does not react with H2SO4 to form a salt.