Exploring Chemical Bonds and Properties

What type of bond is formed when electrons are transferred from one atom to another?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Which of the following is a property of ionic compounds?

• Low melting point

• High electrical conductivity in solid state

• High melting point

• Poor solubility in water

Tags

NGSS.HS-PS1-1

Which of the following is a characteristic of covalent compounds?

• Conduct electricity when dissolved in water

• High melting and boiling points

• Formed by the sharing of electrons

• Usually crystalline solids at room temperature

Which molecule is nonpolar despite having polar bonds?

• HCl

What is the shape of a molecule with a central atom that has four bonded pairs and no lone pairs?

• Linear

• Trigonal planar

• Tetrahedral

• Bent

Which type of intermolecular force is the strongest?

• London dispersion forces

• Dipole-dipole interactions

• Hydrogen bonding

• Van der Waals forces

Which of the following elements has the highest electronegativity?

• Sodium (Na)

• Chlorine (Cl)

• Oxygen (O)

• Fluorine (F)

Tags

NGSS.HS-PS1-1

Explain why ionic compounds tend to have high melting and boiling points.

• Due to the strong covalent bonds between atoms

• Because of the strong electrostatic forces between ions

• Because of the weak intermolecular forces

• Due to the presence of metallic bonds

Tags

NGSS.HS-PS2-4

Predict the type of bond that will form between potassium (K) and chlorine (Cl).

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following molecules has a bent shape?