1st Semester Final Review Pre- AP Chem.

Atoms that have an unequal attraction for shared electrons in a chemical bond have a bond that is

• polar

• nonpolar

• ionic

• dipolar

Tags

NGSS.HS-PS1-1

If two covalently bonded atoms are identical (example H-H or F-F), the bond is

• polar covalent

• nonpolar covalent

• dipolar covalent

• ionic

The electrons involved in the formation of a chemical bond are called

• valence electrons

• s electrons

• Lewis electrons

• dipoles

Tags

NGSS.HS-PS1-2

A chemical bond formed by the attraction between positive ions and a surrounding sea of delocalized electrons is a(n)

• ionic bond.

• nonpolar covalent bond.

• metallic bond.

• polar covalent bond.

If a material can be shaped or extended by physical pressure, such as hammering, which property does the material have?

• malleability

• ductility

• luster

• conductivity

Which of the following compounds would be formed from an ionic bond?

• NaCl

• HCl

• C₁₂H₂₂O₁₁

• SO₂

What type of bond forms from the transfer of electrons?

• ionic

• covalent

• metallic

• covalent network

Which of the following is an example of a molecular formula?

• CaF₂

• Cs₂Cl

• CO₂

• MgO

What is the correct Lewis structure for hydrogen chloride, HCl?

• Cl-H:

• :H-Cl:

• :H-Cl

• 

Tags

NGSS.HS-PS1-3

The following molecules all contain polar bonds; however, the only polar molecule is _______________. Hint: You need to draw Lewis structures to assist you.

• CCl₄

• CO₂

• CO

• CH₄