Properties and Behavior of MgSO4

The video explores whether magnesium sulfate (MgSO4) is an electrolyte. It begins by identifying MgSO4 as an ionic compound due to its composition of a metal and a polyatomic ion. The video explains that MgSO4 is soluble in water, forming magnesium ions (Mg2+) and sulfate ions (SO4 2-). These ions in solution allow MgSO4 to conduct electricity, classifying it as a strong electrolyte. The video concludes with a confirmation of MgSO4's strong electrolyte status.

What type of compound is MgSO4?

• Covalent compound

• Ionic compound

• Metallic compound

• Molecular compound

What happens when magnesium sulfate is added to water?

• It forms a precipitate

• It dissolves and forms ions

• It remains undissolved

• It evaporates

Which ion is formed from magnesium in MgSO4?

• Mg+

• Mg2+

• Mg3+

• Mg4+

What is the charge on the sulfate ion in MgSO4?

• 3-

• 2-

• 4-

• 1-

What defines a substance as an electrolyte?

• It does not dissolve in water

• It dissolves in water and produces ions

• It evaporates in water

• It dissolves in water and forms a precipitate

Why is MgSO4 considered a strong electrolyte?

• It partially dissolves in water

• It dissociates completely into ions and conducts electricity

• It dissolves but does not produce ions

• It does not dissolve in water

What is the role of water in the conductivity of MgSO4?

• Water evaporates and leaves ions

• Water dissolves MgSO4 and allows ion formation

• Water prevents ion formation

• Water reacts with MgSO4 to form a new compound

Which of the following best describes the behavior of MgSO4 in water?

• It forms a solid precipitate

• It reacts to form a gas

• It remains as a whole molecule

• It dissociates into ions