Chem 2 ReDox Test Review

During redox reactions oxidizing agents

• attain a more positive oxidation

• attain a more negative oxidation

• keep the same oxidation

• are not present

In the process of reduction,

• electrons are lost

• electrons are gained

• protons are lost

• protons are gained

Tags

NGSS.HS-PS1-2

When balancing an acidic redox equation, to balance oxygens

• oxygen gas is added.

• water is added.

• hydroxide is added.

• hydrogen is added.

If cell potential is negative, the reaction

• occurs naturally in the direction written.

• can not occur in an electrolytic cell.

• will occur spontaneously in an electrolytic cell.

• will not occur naturally in a voltaic cell.

Corrosion is the disintegration of metals caused by

• combustion

• reduction

• electroplating

• oxidation

In which type of cell does a current drive a nonspontaneous redox reaction?

• fuel cell

• electrolytic cell

• voltaic cell

• galvanic cell

In which direction do electrons move in a voltaic cell?

• from battery to anode

• from cathode to anode

• from cathode to electrolyte

• from anode to cathode

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

The process in which a substance is both oxidized and reduced is called

• electrolysis

• disproportionation

• recharging

• corrosion

The purpose of the salt bridge in an electrochemical cell is

• to force reduction at the anode

• the prevent charge build up on the electrodes

• to complete the circuit

• to replace the loss of anode as the reaction takes place

Tags

NGSS.HS-PS2-5

A material that oxidizes in order to prevent corrosion on another material is called

• sacrificial anode

• sacrificial cathode

• electrolytic cell

• an oxidizing agent

Tags

NGSS.HS-ESS3-4