Electrolytes and Ionic Compounds

The video explores whether MgBr2, magnesium bromide, is an electrolyte. It defines an electrolyte as a substance that dissolves in water to produce ions, allowing the solution to conduct electricity. MgBr2 is identified as an ionic compound due to its metal and non-metal composition. The video explains that MgBr2 is soluble in water, dissociating into Mg2+ and Br- ions, which confirms it as a strong electrolyte. The complete dissociation of MgBr2 in water ensures efficient electrical conductivity.

What is the main focus of the video?

• The periodic table

• The history of chemistry

• The concept of electrolytes using MgBr2

• The properties of water

Which of the following best describes an electrolyte?

• A substance that does not dissolve in water

• A substance that dissolves in water and produces ions

• A non-conductive material

• A type of metal

Why is MgBr2 considered an ionic compound?

• Because it is made of a metal and a non-metal

• Because it does not dissolve in water

• Because it is made of two metals

• Because it is a non-metal compound

What happens to MgBr2 when it is dissolved in water?

• It dissociates into ions

• It becomes a solid

• It forms a gas

• It remains intact

What ions are produced when MgBr2 dissociates in water?

• Mg2+ and two Br- ions

• Mg+ and Br2 ions

• Mg2+ and Br2 ions

• Mg+ and two Br- ions

Why is MgBr2 classified as a strong electrolyte?

• Because it partially dissociates in water

• Because it does not dissociate in water

• Because it is insoluble in water

• Because it completely dissociates in water

What is the role of ions in an electrolyte solution?

• They allow the solution to conduct electricity

• They make the solution basic

• They make the solution acidic

• They prevent the solution from conducting electricity