redox reaction

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer

Which of the following represents oxidation?

• C → CH₄

• Fe³⁺ → Fe²⁺

• Cl₂ → 2Cl^-

• Zn → ZnO

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Another name for a "oxidation-reduction" reaction is

• chemical reaction
• neutralization reaction
• redox reaction
• nuclear reaction

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

• Increased
• Decreased
• Remained Constant
• Varies Randomly

Tags

NGSS.HS-PS1-2

If an atom loses electrons during a chemical reaction, the atom was:

• Oxidized
• Reduced
• Neutralized
• Precipitated

Tags

NGSS.HS-PS1-2

A redox reaction is NOT:

• all reactions

• a combustion reaction

• a reduction-oxidation reaction

• a reaction in which electrons are transferred from one atom to another

Tags

NGSS.HS-PS1-2

Combustion and single-replacement reactions are __________ redox reactions.

• always

• never

• sometimes

• mostly

Tags

NGSS.HS-PS1-2

_____________ synthesis and decomposition reactions involve the transfer of electrons.

• All

• Most

• No

• Some

Tags

NGSS.HS-PS1-2

Substance that oxidizes another substance by accepting its electrons.

• reducing agent

• oxidation number

• combustion

• oxidizing agent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2