Question

помоооооооогите!!!!срочно надо!Хлорид -ионы образуются при растворении в воде вещества ,формула которого:1)HClO2)AgCl3)MgCl24)CCl4

Answer 1

3)

 

MgCl2+H2O=MgO+2HCl

 CL(анион)

Answer 2

MgCl2 , поскольку это растворимая соль, сильный электролит

Answer 3

Formation of Chloride Ions in Water

When certain substances dissolve in water, they can form chloride ions. Let's examine the options provided to determine which substance forms chloride ions when dissolved in water.

1. HCl: - When hydrogen chloride (HCl) dissolves in water, it forms chloride ions (Cl-) and hydronium ions (H3O+) .

2. AgCl: - Silver chloride (AgCl) is sparingly soluble in water, and when it does dissolve, it forms silver ions (Ag+) and chloride ions (Cl-) .

3. MgCl2: - Magnesium chloride (MgCl2) readily dissolves in water and forms magnesium ions (Mg2+) and chloride ions (Cl-) .

4. CCl4: - Carbon tetrachloride (CCl4) is not capable of forming chloride ions when dissolved in water as it is a covalent compound and does not dissociate into ions in water .

Based on the information from the search results, the substance that forms chloride ions when dissolved in water is MgCl2.

Therefore, the correct answer is 3) MgCl2.