WikiCards · Card list · Science cards · Carbon dioxide
Rare card · Science
Carbon dioxide, a Rare card
Carbon dioxide is a chemical compound with the chemical formula CO2.
- Rarity
- Rare
- Domain
- Science
- ATK
- 87
- DEF
- 89
- Power
- 176
- Wikipedia reads a year
- 410,000
Power 176 (ATK + DEF): stronger than 90 % of WikiCards cards.
Carbon dioxide quiz: 3 questions
Three questions on the Carbon dioxide card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is made up of ______ that each have one carbon atom covalently double bonded to two oxygen atoms.
Answer
molecules. It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. From the Carbon dioxide article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Unification of Italy. Unification of Italy 91 · Carbon dioxide 87 · Energy 84 · Operating system 81 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.
- It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms.
- It is found in a gas state at room temperature and at normally-encountered concentrations it is odorless.
- As the source of carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Carbon dioxide article was read about 410,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 87 and blocks with 89: each hit it takes is cut by 36 %.
How to get Carbon dioxide
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.
More Science cards
Cards close in power
The cards just above and just below Carbon dioxide in the power ranking, all domains together.
- TofuRare · Society · ATK 85 DEF 91
- Unification of ItalyRare · History · ATK 91 DEF 85
- BarleyRare · Nature · ATK 80 DEF 96
- ColumbidaeRare · Nature · ATK 80 DEF 96
- ToulouseRare · Society · ATK 87 DEF 89
- OliveRare · Society · ATK 79 DEF 97
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Credits
Text : Wikipedia, Carbon dioxide (revision), CC BY-SA 4.0. Photo : Alessio Damato, Public domain, Wikimedia Commons.





