Unit 05 Post-Assessment Remediation (PAR)

Front

What occurs in order to break the bond in a Cl₂ molecule?

Back

Energy is absorbed.

Tags

NGSS.HS-PS1-4

Front

The bonds in BaO are best described as:

Back

Ionic, because valence electrons are transferred.

Front

Describe the charge distribution and polarity of a CH₄ molecule.

Back

The charge distribution is symmetrical and the molecule is nonpolar.

Front

As a bond between a hydrogen atom and a sulfur atom is formed, electrons are:

Back

Shared to form a covalent bond.

Tags

NGSS.HS-PS1-1

Front

Which Lewis electron-dot diagram represents a molecule of H₂S?

Back

Diagram 2.

Tags

NGSS.MS-PS1-1

Front

What type of bond is formed when electrons are shared between atoms?

Back

Covalent bond.

Tags

NGSS.HS-PS1-1

Front

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

Back

Ionic bond.

Front

What is the definition of a nonpolar molecule?

Back

A molecule with an even distribution of charge, resulting in no overall dipole moment.

Front

What is the definition of a polar molecule?

Back

A molecule with an uneven distribution of charge, resulting in a dipole moment.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how atoms bond and interact with each other.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2