Review Redox Test

Defined as the loss of electrons.

• oxidation

• reduction

• redox

• OIL RIG

Defined as the gain of electrons.

• oxidation

• redox

• reduction

• LEO GER

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

In the half equation:

Cu --> Cu²⁺ + 2e^-

Copper undergoes...

• Spectatorship

• Reduction

• Deprotonation

• Oxidation

Tags

NGSS.HS-PS1-2

What is the oxidation number of Mg in MgCl₂ (Magnesium Chloride)?

• +1

• +2

• -1

• -2

What is the oxidation number of O in CO₂?

• +2
• -1
• +4
• -2

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

• -3
• +4
• -2
• +3

Tags

NGSS.HS-PS1-2

What is oxidation number of Cr in
Cr₂O₇^2-?

• -2
• +2
• +6
• +12