Redox Reaction Oxidation Number

Consider the following REDOX reaction: Cl₂(g) → ClO⁻(aq) + Cl⁻(aq) (basic solution) Which species is the result of oxidation?

• Cl⁻

• ClO⁻

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of O in O₂ ?

• 0

• -2

• +1

• +2

Another name for a "oxidation-reduction" reaction is

• chemical reaction

• neutralization reaction

• redox reaction

• nuclear reaction

Gaining hydrogen is an example of...

• oxidation

• reduction

Tags

NGSS.HS-PS1-2

In a redox reaction, the species reduced

• gains electrons and is the oxidizing agent

• loses electrons and is the oxidizing agent

• loses electrons and is the reducing agent

• gains electrons and is the reducing agent

In a reaction, copper is reduced; its number of electrons has:

• Increased

• Decreased

• Remained Constant

• Varies Randomly

Tags

NGSS.HS-PS1-2

Substance that oxidizes another substance by accepting its electrons.

• reducing agent

• oxidation number

• combustion

• oxidizing agent

Cl₂ + 2e- --> 2Cl ^- is an example of:

• a chemical reaction

• redox

• oxidation

• reduction

Substance that reduces another substance by losing electrons.

• reducing agent

• half-reaction

• electronegative atom

• oxidizing agent

What is the purpose of assigning oxidation numbers to atoms in a reaction?

• To identify the boiling point

• To determine the color of the compound

• To track the movement of electrons

• To calculate the mass of the atoms