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CIPS L3M5 Exam - Topic 4 Question 41 Discussion

Actual exam question for CIPS's L3M5 exam
Question #: 41
Topic #: 4
[All L3M5 Questions]

What is the chemical formula for methane?

Show Suggested Answer Hide Answer
Suggested Answer: C

CH4 - methane - a greenhouse gas.


by Rhea at Oct 31, 2025, 11:41 PM

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Malinda
11 days ago
No way it's N2O, that's for laughing!
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Lamar
16 days ago
CH4 is right, but why do people mix it up with CO?
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Dahlia
21 days ago
I thought it was H2O for a second.
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Sommer
27 days ago
It's definitely CH4!
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Miesha
1 month ago
H2O-no, the answer is C) CH4. I'm not going to let this question N2O me off track.
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Katina
1 month ago
N2O way! The answer is clearly C) CH4.
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Temeka
1 month ago
Definitely C) CH4. I'm not a CO2 about it.
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Kristel
2 months ago
I thought it was H2O, but I guess I was just being a little too H2O-ptimistic.
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Mee
2 months ago
C) CH4 is the correct answer. Methane is a simple hydrocarbon with the formula CH4.
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Alishia
2 months ago
I’m pretty sure methane is CH4. I remember it’s the simplest alkane, but I hope I’m not mixing it up with something else!
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Dana
2 months ago
I’m kind of confused. I know methane has carbon and hydrogen, but I can’t remember if it’s CH4 or something else.
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Tonette
2 months ago
I practiced a similar question, and I believe methane is definitely CH4. The others don’t match the structure.
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Dorian
2 months ago
Methane is a simple hydrocarbon, right?
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Lynsey
3 months ago
Yeah, I remember that from class.
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Jacquline
3 months ago
I think it's CH4.
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Solange
3 months ago
Definitely CH4, it's the only one that fits!
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Chana
3 months ago
I think the formula for methane is CH4, but I’m not completely sure. I remember it has carbon and hydrogen.
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Junita
4 months ago
I'm drawing a blank here. Methane, methane... Ah, I think it's got 4 hydrogen atoms. So the answer is C, CH4.
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Chantell
4 months ago
Okay, I remember learning about the structure of methane in class. The formula has 1 carbon atom and 4 hydrogen atoms, so the answer has to be C. CH4.
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Tijuana
4 months ago
Ugh, chemistry questions are the worst. I'm not sure about this one - maybe I'll just guess and hope for the best.
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Carlton
4 months ago
Hmm, let me think about this. Methane is a simple hydrocarbon, so it's probably got hydrogen and carbon in the formula. I'll go with C.
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Cristal
4 months ago
I'm pretty confident I know this one. Methane is CH4, so the answer is C.
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Maryanne
3 months ago
I think it's CH4 too!
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