U14 Redox Quizizz

What reaction occurs at the anode?

• Ag⁺ + e^- →Ag
• Ag → Ag⁺ + e^-
• Ni²⁺ + 2e^- → Ni
• Ni → Ni²⁺ + 2e^-

Tags

NGSS.HS-PS1-2

Reduction happens at the 

• anode
• cathode
• salt bridge
• voltmeter

This electrode loses mass 

• anode
• cathode

Tags

NGSS.HS-PS1-7

Is calcium oxidized or reduced in the following reaction? 
2 CaO--> 2 Ca + O₂

• Oxidized
• Reduced

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

Which energy conversion shown below takes place in a voltaic cell?

• Electrical to chemical

• Mechanical to chemical

• Mechanical to electrical

• Chemical to electrical

Tags

NGSS.HS-PS3-3

In a voltaic cell electrons flow

• through the salt bridge
• from the cathode to the anode through the wire
• from the anode to the cathode through the wire

Tags

NGSS.HS-PS3-5

Oxidation is the _________ of electrons.

• loss

• gain

• sharing

• transfer

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Reduction is the ___________ of electrons.

• loss

• gain

• sharing

• transfer

Tags

NGSS.HS-PS1-2

Gaining hydrogen is an example of...

• oxidation

• reduction