Answer:
A
Explanation:
When it comes to gases, volume and pressure have an indirect relationship, when one increases the other decreases and vice versa.
Answer:
CO2
Explanation:
(I Just took the test)
At STP 1 mol=22.4 Liters, so we now know that it is asking for which of the gasses has a molar mass of 44, and CO2 is th only one with that molar mass
I'd recommend checking out some videos on youtube to get some good examples worked out, for example, the video "<span>How to Balance Chemical Equations in 5 Easy Steps: Balancing Equations Tutorial" is done well.</span>