Redox Reactions Review

Cl₂ + 2e- --> 2Cl ^- is an example of:

• a chemical reaction

• redox

• oxidation

• reduction

An increase in oxidation number.

• more acidic

• reduction

• less basic

• oxidation

A decrease in oxidation number.

• concentrated

• reduction

• oxidation

• dilute

What is the oxidation number of N in NO₂^1- ?

• -3

• +4

• -2

• +3

Which direction do the electrons flow in wire X and which metal is oxidized?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-2

What reaction occurs at the anode?

• Ag⁺ + e^- →Ag

• Ag → Ag⁺ + e^-

• Ni²⁺ + 2e^- → Ni

• Ni → Ni²⁺ + 2e^-

Tags

NGSS.HS-PS1-2

Give the oxidation number for the underlined atoms below.

• -2

• +2

• +1

• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Give the oxidation number for the underlined atoms below.

• +4

• -4

• +2

• -2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is an electrolytic cell? 

• a cell that converts chemical energy into electrical energy 

• a cell that converts electrical energy into electrical energy 

• a cell that converts electrical energy into chemical energy 

• A cell that converts kinetic energy into potential energy. 

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The sum of all oxidation numbers in a neutral compound is ___.

• 0

• 1

• -1

• depends on the compound