Multiple Choice
Which of the following is a chemical property of matter?
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1. Intro to General Chemistry
Chemical Properties
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Which gas is most abundant in Earth's atmosphere?
A
Argon (Ar)
B
Carbon dioxide (CO_2)
C
Oxygen (O_2)
D
Nitrogen (N_2)
Verified step by step guidance1
Step 1: Understand the composition of Earth's atmosphere, which is primarily made up of several gases in varying proportions.
Step 2: Recall that the major components of dry air are nitrogen (N\_2), oxygen (O\_2), argon (Ar), and carbon dioxide (CO\_2), among others in trace amounts.
Step 3: Recognize that nitrogen (N\_2) constitutes the largest percentage of Earth's atmosphere, approximately 78% by volume.
Step 4: Note that oxygen (O\_2) is the second most abundant gas, making up about 21%, followed by argon (Ar) at around 0.93%, and carbon dioxide (CO\_2) at roughly 0.04%.
Step 5: Conclude that among the options given, nitrogen (N\_2) is the most abundant gas in Earth's atmosphere.
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