Warm-Ups Day 11

Which of the following best describes an ionic bond?

• A bond formed by the sharing of electrons between atoms.

• A bond formed by the transfer of electrons from one atom to another.

• A bond formed by the sharing of protons between atoms.

• A bond formed by the sharing of neutrons between atoms.

What is the main characteristic of a covalent bond?

• It involves the transfer of electrons.

• It involves the sharing of electrons.

• It involves the transfer of protons.

• It involves the sharing of neutrons.

Which of the following is a characteristic of polar molecules?

• They have an even distribution of electrical charge.

• They have an uneven distribution of electrical charge.

• They do not conduct electricity in solution.

• They are always gases at room temperature.

How is an ionic bond formed between sodium (Na) and chlorine (Cl)?

• Sodium shares electrons with chlorine.

• Sodium donates an electron to chlorine.

• Sodium and chlorine share protons.

• Sodium and chlorine share neutrons.

Which of the following is a characteristic of molecules?

• They are always composed of metals.

• They are formed by ionic bonds.

• They can be formed by covalent bonds.

• They are always polar.

Which of the following is an example of a polar bond?

• H-H

• O-H

• Cl-Cl

• N-N

What is the role of polyatomic ions in ionic compounds?

• They act as individual atoms.

• They act as a single unit with a charge.

• They do not participate in bonding.

• They always form covalent bonds.

Which of the following statements is true about nonpolar molecules?

• They have a high melting point.

• They have a symmetrical distribution of charge.

• They are always soluble in water.

• They conduct electricity in solution.

Select any bonds that are POLAR. Then select whether the molecule overall is POLAR or NONPOLAR.

Select any bonds that are POLAR. Then select whether the molecule overall is POLAR or NONPOLAR.