Quiz on Compounds

What is a compound?

• A single element

• A mixture of elements

• A substance formed from two or more elements chemically bonded together

• A physical blend of substances

Identify the three types of chemical bonds.

• Ionic, Covalent, Metallic

• Hydrogen, Van der Waals, Ionic

• Covalent, Metallic, Hydrogen

• Van der Waals, Ionic, Covalent

What are the properties of ionic compounds?

• High melting and boiling points

• Low electrical conductivity

• Soluble in non-polar solvents

• Soft and flexible

What are the properties of metallic compounds?

• High melting and boiling points

• Poor electrical conductivity

• Brittle and non-malleable

• Low density

What are the properties of simple molecular covalent substances?

• They have high melting and boiling points.

• They conduct electricity when dissolved in water.

• They are usually gases or liquids at room temperature.

• They form giant lattice structures.

What are the properties of giant covalent substances?

• High melting and boiling points

• Low melting and boiling points

• Conduct electricity

• Soluble in water

Explain the bonding and structure in metallic compounds.

• Metallic bonding involves the sharing of free electrons among a lattice of metal atoms.

• Metallic compounds have ionic bonds between metal and non-metal atoms.

• Metallic bonding is characterized by the transfer of electrons from one atom to another.

• Metallic compounds are formed by covalent bonds between metal atoms.

How does ionic bonding take place?

• Through the sharing of electrons between atoms

• Through the transfer of electrons from one atom to another

• Through the sharing of protons between atoms

• Through the transfer of protons from one atom to another

Covalent bonds are formed by the sharing of:

• Electrons

• Protons

• Neutrons

• Ions

Simple molecular substances have low melting and boiling points because:

• They have strong intermolecular forces.

• They have weak intermolecular forces.

• They have strong covalent bonds.

• They have high molecular weights.