Multiple Choice
Which term describes anything that has mass and occupies space?
4
views
1. Intro to General Chemistry
Classification of Matter
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Approximately what percentage of Earth's atmosphere is composed of nitrogen gas (N_2)?
A
10%
B
78%
C
21%
D
50%
Verified step by step guidance1
Understand that Earth's atmosphere is primarily composed of several gases, with nitrogen (N_2) and oxygen (O_2) being the most abundant.
Recall that nitrogen gas (N_2) makes up the largest portion of the atmosphere by volume.
Recognize that the approximate percentage of nitrogen in the atmosphere is around 78%, which is a well-established scientific fact.
Compare the given options (10%, 78%, 21%, 50%) to this known value to identify the correct percentage.
Conclude that the correct answer is 78%, as it closely matches the known composition of nitrogen in Earth's atmosphere.
1:44mWatch next
Master Introduction to General Chemistry Course with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Classification of Matter practice set
Problem sets built by lead tutorsExpert video explanations