Reef Chemistry Puzzle #2

[Dburr1014]

And the answer is...

The specific answer I was looking for is CO2.

A. At room temperature, I am typically either a gas or a liquid
'
CO2 is a gas at room temp and pressure, and can be a liquid when under pressure such as in a cylinder used for a CaCO3/CO2 reactor.
It would only be a solid at room temperature under extremely high pressure (>1000 atmospheres) that would not be encountered in everyday life:

https://commons.wikimedia.org/wiki/File:phase_changes_of_CO2.png

B. The fraction of reefkeepers who experience displeasure with me is more today than ten years ago (in my opinion)

I was basing this on the increased focus on pH related to hard coral growth, and the unhappiness many find in realizing that indoor CO2 levels are driving their high tank CO2 levels and hence low pH. Ten years ago, not focusing on pH was more prevalent.

I was friggin right? Huh, and after I posted I thought I was wrong.

Good one randy, these questions really make me think.

 

[Tavero]

Iodine is not a liquid at any pressure at room temperature (see the phase diagram below).

Ammonia and nitrogen fail clue 2. Nitrogen also is not a liquid a room temp. It goes supercritical before liquifying.

You are right about iodine and nitrogen, I forgot about the room temperature clue, but I do think all of the examples fit clue 2. Nowadays people are worrying much more about ammonia, nitrogen, iodine and other elements than a decade ago.

 

[MnFish1]

Bromine fits the liquid and gas part, and one certainly could argue that more folks are displeased with it since 10 years ago most reefers never thought about it and now they see it as a value in their ICP that they might not like.

I have to give this one full credit, despite it not being what I was looking for.

I'll take it lol

 

[tzabor10]

Iodine is not a liquid at any pressure at room temperature (see the phase diagram below).

Ammonia and nitrogen fail clue 2. Nitrogen also is not a liquid a room temp. It goes supercritical before liquifying.

Aww man the REAL CHEMISTRY is breaking out! Y’all betta recognize

 

[danimal1211]

The word puzzle was pretty inventive
89- Ac (actinium)
53- I (Iodine)
110- Ds (Darmstadtium)

Took googling the atomic numbers and stumbling on the answer.