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WikiCards · Card list · Science cards · Hydrogen halide

Common card · Science

Hydrogen halide, a Common card

In chemistry, hydrogen halides are diatomic, inorganic compounds that function as Arrhenius acids.

From the Wikipedia article

Rarity
Common
Domain
Science
ATK
52
DEF
41
Power
93
Wikipedia reads a year
8,800

Power 93 (ATK + DEF): stronger than 35 % of WikiCards cards.

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Hydrogen halide quiz: 3 questions

Three questions on the Hydrogen halide card, the way WikiCards duels ask them. Pick an answer, the facts are just below.

  1. Find the missing word

    All known hydrogen halides are gases at standard ______ and pressure.

    Answer

    temperature. All known hydrogen halides are gases at standard temperature and pressure. From the Hydrogen halide article on Wikipedia.

  2. Which of these cards hits hardest (highest ATK)?

    Answer

    Robert S. Mulliken. Robert S. Mulliken 61 · Yuri Matiyasevich 58 · Paul Sabatier 55 · Hydrogen halide 52 ATK in WikiCards.

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.

Why it is Common

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Hydrogen halide article was read about 8,800 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 52 and blocks with 41: each hit it takes is cut by 16 %.

How to get Hydrogen halide

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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Cards close in power

The cards just above and just below Hydrogen halide in the power ranking, all domains together.

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Credits

Text : Wikipedia, Hydrogen halide (revision), CC BY-SA 4.0. Photo : Streng, Public domain, Wikimedia Commons.

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