The Oxidation Number of Cr in Cr₂O₇^2- Is

question 94

Multiple Choice

The oxidation number of Cr in Cr₂O₇^2- is

• A) -12.
• B) -7.
• C) -2.
• D) +6.
• E) +7.

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Definitions:

Warm Air

Air that has a high temperature, which can rise due to its lower density compared to cooler surrounding air.

Hurricanes

Powerful tropical storms with heavy rain and strong winds that form over warm ocean waters.

Warm Surface Water

Surface ocean water that has a relatively high temperature, often found in tropical and subtropical regions.

Water Vapor

the gaseous form of water, often released into the atmosphere from volcanic eruptions and other natural processes.