Unit 3 Review Bonding

Given the balanced equation representing a reaction: Cl₂(g) → Cl(g) + Cl(g) What occurs during this change?

• Energy is absorbed and a bond is broken.

• Energy is absorbed and a bond is formed.

• Energy is released and a bond is broken.

• Energy is released and a bond is formed.

Tags

NGSS.HS-PS1-4

Which statement describes the process represented by this equation? I+I→ I₂

• A bond is formed as energy is absorbed.

• A bond is formed and energy is released.

• A bond is broken as energy is absorbed.

• A bond is broken and energy is released.

Tags

NGSS.HS-PS1-4

Which statement describes what occurs as a sodium atom combines with a chlorine atom to form a compound?

• Energy is absorbed and a bond is formed.

• Energy is absorbed and a bond is broken.

• Energy is released and a bond is formed.

• Energy is released and a bond is broken.

Tags

NGSS.HS-PS1-4

Which of these elements has an atom with the most stable outer electron configuration?

• Ne

• Cl

• Ca

• Na

Tags

NGSS.HS-PS1-1

The elements Li and F combine to form an ionic compound. The electron configurations in this compound are the same as the electron configurations of atoms in Group

• 1

• 14

• 17

• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which element has atoms with the greatest attraction for electrons in a chemical bond?

• beryllium

• lithium

• fluorine

• oxygen

Tags

NGSS.HS-PS1-1

Which formula represents an ionic compound with covalent bonds?

• H₂

• CH₄

• CH₃OH

• NH₄Cl

Which substance contains bonds that involved the transfer of electrons from one atom to another?

• CO2

• NH3

• KBr

• Cl2

Which sample contains particles in a rigid, fixed, geometric pattern?

• CO₂(aq)

• H₂O(l)

• HCl(g)

• KCl(s)

Which formula represents an ionic compound?

• NaCl

• N₂O

• HCl

• H₂O

Tags

NGSS.HS-PS1-3