The Periodic Table

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skullpatrol

03:28

in English Language & Usage: Multi-Layered Discourse Room, 4 hours ago, by RegDwigнt

@skillpatrol CaK is plain impossible. And I took my last chemistry exam 22 years ago.

(also is HNY chemically valid?)

@OmegaKrypton I read that as the new year of 2020 is a time to reflect back at 2019?

:-)

Omega Krypton

04:03

yeah possible

6 hours later…

Haha Hahaha

10:15

@Zenix thanks! i guess ill have to earn some more then :(

thanks @M.A.R.

6 hours later…

Hot nitric acid (HNQ)

16:10

Q: Neutralizing a sulfuric acid spill

From my AP Chem Prep Book: What should you do if you spill sulfuric acid on the countertop? A) Neutralize the acid with vinegar. B) Sprinkle solid NaOH on the spill. C) Neutralize the acid with NaHCO3. D) Neutralize the acid with an Epsom salt $(\ce{MgSO4})$ solution. The answer ...

3 hours later…

Bounty Hunter

19:12

Q: Does brewing tea with hard water reduce the amount of bioavailable fluorine?

I read that brewed tea contains a relatively large concentration of Fluorine. Fluorine can have negative health effects such as Skeletal Fluorosis Tap water and especially hard water contains lots of Calcium ions. Would Calcium and Fluorine bond to form Calcium Fluoride? I'm obviously not a ch...