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WikiCards · Card list · Science cards · Acid anhydride
Common card · Science
Acid anhydride, a Common card
An acid anhydride is a type of chemical compound composed of two acyl groups bonded to a common oxygen atom.
- Rarity
- Common
- Domain
- Science
- ATK
- 31
- DEF
- 18
- Power
- 49
- Wikipedia reads a year
- 13,000
Power 49 (ATK + DEF).
Acid anhydride quiz: 3 questions
Three questions on the Acid anhydride card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
They are commonly formed by the ______ of water molecules from a pair of acids.
Answer
removal. They are commonly formed by the removal of water molecules from a pair of acids. From the Acid anhydride article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Nerf bar. Nerf bar 42 · Christian-Georges Schwentzel 39 · Stevrek Ridge 35 · Acid anhydride 31 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Acid anhydride. Acid anhydride 13,000 · Nerf bar 6,300 · K-4 cart 240 · L-arabinokinase 150 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- They are commonly formed by the removal of water molecules from a pair of acids.
- In organic chemistry, organic acid anhydrides contain the functional group −C−O−C−.
- Organic acid anhydrides often form when one equivalent of water is removed from two equivalents of an organic acid in a dehydration reaction.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Acid anhydride article was read about 13,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 31 and blocks with 18: each hit it takes is cut by 7 %.
How to get Acid anhydride
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
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The cards just above and just below Acid anhydride in the power ranking, all domains together.
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- Central America-4 Border Control AgreementCommon · Arts · ATK 36 DEF 13
- Nerf barCommon · Science · ATK 42 DEF 7
- Maurice Richard ArenaCommon · Society · ATK 38 DEF 11
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Acid anhydride (revision), CC BY-SA 4.0. Photo : Bebelher, Public domain, Wikimedia Commons.
