CIPS L3M5 Exam - Topic 1 Question 33 Discussion

Actual exam question for CIPS's L3M5 exam

Question #: 33
Topic #: 1

[All L3M5 Questions]

What is the chemical formula for carbon dioxide?

ACH4

BCO2

CN2O

DCO

Show Suggested Answer

Suggested Answer: D

CO2 - an example of a greenhouse gas.

This is very common knowledge.

by Eve at Apr 09, 2025, 09:03 PM

Limited Time Offer

25%

Off

Get Premium L3M5 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Leota

2 months ago

Are we sure it's not N2O? Sounds familiar.

upvoted 0 times

...

Jenifer

2 months ago

Wait, isn't CO2 just carbon monoxide?

upvoted 0 times

...

Makeda

2 months ago

Definitely CO2, can't believe some people mix it up!

upvoted 0 times

...

Ma

3 months ago

CH4 is methane, not CO2!

upvoted 0 times

...

Major

3 months ago

The formula for carbon dioxide is CO2.

upvoted 0 times

...

Leatha

3 months ago

I feel like I’ve seen CH4 and N2O in other questions, but CO2 definitely stands out as the formula for carbon dioxide.

upvoted 0 times

...

Adrianna

3 months ago

I keep mixing up CO2 and CO. I hope I remember correctly that CO2 is the one with two oxygen atoms.

upvoted 0 times

...

Leonie

4 months ago

I practiced a similar question last week, and I’m pretty confident that CO2 is the right answer. It’s the one with carbon and two oxygens.

upvoted 0 times

...

Elouise

4 months ago

I think the formula for carbon dioxide is CO2, but I’m not completely sure. I remember it has two oxygen atoms.

upvoted 0 times

...

Doyle

4 months ago

I've got this! Carbon dioxide, the formula is CO2. Easy peasy.

upvoted 0 times

...

Wayne

4 months ago

Wait, is it N2O? No, that's nitrous oxide. Ugh, I'm getting confused. I better double-check the options.

upvoted 0 times

...

Shayne

4 months ago

Okay, let's see. I remember learning that carbon dioxide has two oxygen atoms, so the formula must be CO2. I'm feeling good about that.

upvoted 0 times

...

Maryanne

5 months ago

Hmm, I'm not 100% sure about this one. Let me think it through - I know carbon has the symbol C and oxygen has the symbol O, so maybe the formula is CO2?

upvoted 0 times

...

Roselle

5 months ago

This one's easy, I'm pretty confident the answer is B. CO2 is the chemical formula for carbon dioxide.

upvoted 0 times

...

Milly

10 months ago

Haha, C'mon, it's basic chemistry! CO2 all the way, baby!

upvoted 0 times

Pamella

9 months ago

Definitely CO2, no doubt about it.

upvoted 0 times

...

Joaquin

9 months ago

Yeah, it's CO2 for sure.

upvoted 0 times

...

Lonny

9 months ago

CO2

upvoted 0 times

...

Tori

10 months ago

B, CO2. Gotta love that carbon-oxygen action, am I right?

upvoted 0 times

Ellsworth

8 months ago

B, CO2. Gotta love that carbon-oxygen action, am I right?

upvoted 0 times

...

Lacey

8 months ago

D) CO

upvoted 0 times

...

Breana

8 months ago

C) N2O

upvoted 0 times

...

Cristy

8 months ago

B) CO2

upvoted 0 times

...

Elina

9 months ago

A) CH4

upvoted 0 times

...

Chau

10 months ago

CO2, of course. You'd have to be a real CO-kehead to get this one wrong.

upvoted 0 times

Lajuana

8 months ago

CO2, of course. You'd have to be a real CO-kehead to get this one wrong.

upvoted 0 times

...

Mollie

8 months ago

D) CO

upvoted 0 times

...

Sharita

8 months ago

C) N2O

upvoted 0 times

...

Louann

9 months ago

B) CO2

upvoted 0 times

...

Joaquin

10 months ago

A) CH4

upvoted 0 times

...

Paul

10 months ago

I agree with Felicitas, the chemical formula for carbon dioxide is B) CO2.

upvoted 0 times

...

Felicitas

10 months ago

I think it's B) CO2 because carbon dioxide is made up of one carbon atom and two oxygen atoms.

upvoted 0 times

...

Tiera

10 months ago

B) CO2

upvoted 0 times

...

Johnson

11 months ago

Easy peasy, it's definitely CO2. I could name that in my sleep!

upvoted 0 times

Margurite

9 months ago

Easy peasy, it's definitely CO2. I could name that in my sleep!

upvoted 0 times

...

Willow

9 months ago

D) CO

upvoted 0 times

...

Mindy

9 months ago

C) N2O

upvoted 0 times

...

Walton

9 months ago

B) CO2

upvoted 0 times

...

Truman

9 months ago

A) CH4

upvoted 0 times

...