What is the chemical formula of dry ice? (also known as cardice)

H₂O
CO₂
CH₄
HCOOH
Dry ice is the solid form of carbon dioxide. In temperatures above −78.5 °C (−109.3 °F) it will not melt but sublimate, that means transforming straight from solid form into gas one without liquid phase.
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H₂O
CO₂
CH₄
HCOOH
answers
flagMalaysia
0%
82%
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flagUnknown
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flagIndia
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flagAustralia
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flagPakistan
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flagthe United States
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15%
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215
flagthe United Arab Emirates
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flagthe United Kingdom
11%
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11%
17%
90
flagAustria
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7%
28%
14
flagPoland
13%
43%
17%
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6964
flagthe Philippines
2%
43%
19%
34%
41
flagGermany
10%
41%
21%
26%
108
flagSwitzerland
16%
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8%
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12
flagNigeria
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13%
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23
flagGreece
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6%
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flagCanada
14%
28%
28%
28%
14