Understanding Dissolution: Ionic vs Covalent Compounds

The video explains what happens at the atomic level when substances like salt and sugar dissolve in water. It highlights the differences between ionic and covalent compounds. Salt, an ionic compound, breaks into individual ions, while sugar, a covalent compound, breaks into molecules that remain intact. The video emphasizes the importance of understanding these differences to avoid misconceptions about dissolving processes.

What are the two substances discussed in the video that dissolve in water?

• Sugar and flour

• Salt and pepper

• Salt and sugar

• Pepper and flour

What type of compound is salt?

• Covalent

• Ionic

• Organic

• Metallic

Which elements make up the ionic compound salt?

• Hydrogen and Oxygen

• Sodium and Carbon

• Carbon and Oxygen

• Sodium and Chloride

Which type of compound is sugar?

• Ionic

• Metallic

• Covalent

• Organic

What elements are found in sugar molecules?

• Carbon and Sodium

• Sodium and Chloride

• Carbon, Oxygen, and Hydrogen

• Hydrogen and Oxygen

How do the atoms in salt behave when it dissolves in water?

• They evaporate

• They stay together as molecules

• They form new compounds

• They break apart into individual atoms

What happens to sugar molecules when sugar dissolves in water?

• They break into individual atoms

• They stay together as molecules

• They form new compounds

• They evaporate

What is a common misconception about the dissolution of covalent compounds like sugar?

• They change color

• They do not dissolve at all

• Their molecules break into individual atoms

• They dissolve faster than ionic compounds

What is the main difference in the dissolution process of ionic and covalent compounds?

• Ionic compounds break into individual atoms, covalent compounds stay as molecules

• Covalent compounds break into atoms

• Both dissolve in the same way

• Ionic compounds form new compounds

What happens to the molecules of covalent compounds when they dissolve?

• They break into individual atoms

• They stay intact as molecules

• They form ionic bonds

• They evaporate