Redox

Which of the following equations is a balanced redox equation?

What element is being Reduced?

• N

• H

• O

• S

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

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

• Increased

• Decreased

• Remained Constant

• Varies Randomly

Tags

NGSS.HS-PS1-2

Gaining oxygen is an example of...

• oxidation

• reduction

Tags

NGSS.HS-PS1-2

Which of the following represents oxidation?

• C → CH₄

• Fe³⁺ → Fe²⁺

• Cl₂ → 2Cl^-

• Zn → ZnO

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

• Zinc
  

• Hydrogen

• Chlorine

• None

What element is being Oxidized?

• N

• H

• O

• S

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

In a redox reaction, spectator ions...

• become oxidised

• become reduced

• remain unchanged

Reduction happens at the 

• anode

• cathode

• salt bridge

• voltmeter