Unit 03 Test Review

Match the terms to the definitions.

• anions

• Atoms or ions with a negative charge

• cations

• formed with two nonmetals

• ionic bond

• a lasting attraction between atoms or ions

• chemical bond

• atoms give and take electrons

• covalent bond

• Atoms or ions with a positive charge

Tags

112.43.c.7.D

112.43.c.7

What type of bond is formed between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl)?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Tags

TX.112.43.C.7.D.

What is the electronegativity trend across a period in the periodic table?

• It decreases from left to right.

• It increases from left to right.

• It remains constant.

• It decreases and then increases.

Tags

TX.112.43.C.7.A.

Write the chemical formula for dinitrogen tetroxide.

Tags

TX.112.43.C.7.B.

Which molecular geometry is associated with a molecule that has two bonding pairs and two lone pairs of electrons?

• Linear

• Bent

• Trigonal planar

• Tetrahedral

Tags

TX.112.43.C.7.C.

Predict the type of bonding in a compound formed between magnesium and oxygen.

• Covalent

• Ionic

• Metallic

• Hydrogen

Tags

TX.112.43.C.7.A.

What is the chemical formula for sulfur hexafluoride?

Tags

TX.112.43.C.7.B.

Construct an argument to explain why water has a higher boiling point than methane.

• Water has stronger hydrogen bonds compared to methane's van der Waals forces.

• Water has weaker hydrogen bonds compared to methane's van der Waals forces.

• Water has stronger ionic bonds compared to methane's covalent bonds.

• Water has weaker ionic bonds compared to methane's covalent bonds.

Tags

TX.112.43.C.7.D.

Which element is likely to have the highest electronegativity?

• Sodium (Na)

• Chlorine (Cl)

• Aluminum (Al)

• Silicon (Si)

Tags

TX.112.43.C.7.A.

112.43.c.5.C

Which of the following statements best describes covalent bonding?

• It involves the transfer of electrons

• It involves the sharing of electron pairs between atoms

• It involves the attraction between ions

• It involves the pooling of electrons

Tags

TX.112.43.C.7.D.