Which of these substances are electrolytes? Which ones are not? Explain why? Al (OH) 3; H2SO3; Cl2; H2O; AgNO3.

Electrolytes are substances whose solutions can conduct electric current. Such substances dissociate into ions. Ions can carry an electrical charge. Therefore, solutions of such substances can be called an electrolyte solution. In our case, the electrolyte is silver nitrate and sulfurous acid. They dissociate into ions:

H2SO3 = 2H (+) + SO3 (2-);

AgNO3 = Ag (+) + NO3 (-).

Aluminum hydroxide Al (OH) 3 is a poor electrolyte because it is poorly soluble and weakly dissociates.

Chlorine is a gas under normal conditions and also does not dissociate. However, it can react with water, and the reaction products are already an electrolyte.

Pure water is not considered an electrolyte. However, it is worth clarifying that water is still very weak, but conducts an electric current due to internal dissociation.

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