Oxidation and Reduction Intro LC2 COL

Oxidation is....

• Gain of electrons

• Loss of electrons

• Both the loss and gain of electrons

• None of these

Reduction is....

• Gain of electrons

• Loss of electrons

• Both the loss and gain of electrons

• None of these

Tags

NGSS.HS-PS1-2

Substances that lose electrons easily and are oxidized in a chemical reaction are ____________.

• reducing agents

• coloring agents

• oxidizing agents

• neutralizing agents

• analytical agents

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The change of I^‾ to I₂ is ________________

• oxidation

• reduction

• neutralization

• Decomposition

• Combustion

Substance that oxidizes another substance by accepting its electrons.

• oxidising agent

• reducing agent

• combustion

In a redox reaction, the species reduced

• gains electrons and is the oxidizing agent

• loses electrons and is the oxidizing agent

• gains electrons and is the reducing agen

• loses electrons and is the reducing agent

Substance that oxidizes another substance by accepting its electrons.

• oxidation number

• reducing agent

• oxidizing agent

Which statement is true:
Mg → Mg²⁺ + 2e^–

• Mg gains 2 electrons
• Mg_²⁺ loses 2 electrons
• Mg loses 1 electron
• Mg loses 2 electrons

Tags

NGSS.HS-PS1-2

Which of the following half reactions correctly represents a reduction half reaction?

• Fe →Fe²⁺ + 2e^-
• Pb⁴⁺ + 2e^- →Pb²⁺
• 2O^-2 →O₂ + 4e^-
• Fe + 3e^- →Fe³⁺

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Increased

• Decreased

• Remained Constant

• Varies Randomly

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2