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How does the concentration of ions in a strong acid differ from a weak acid
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17. Acid and Base Equilibrium
Oxyacids
Multiple Choice
In nature, carbonic acid is primarily formed when which process occurs?
A
Carbon monoxide dissolves in water to form carbonic acid: .
B
Carbon dioxide reacts with molecular hydrogen in water to form carbonic acid: .
C
Carbon dioxide dissolves in water and reacts to form carbonic acid: .
D
Solid calcium carbonate reacts with water to form carbonic acid and calcium hydroxide: .
Verified step by step guidance1
Understand that carbonic acid (H2CO3) is primarily formed in nature when carbon dioxide (CO2) dissolves in water (H2O).
Recognize the chemical equilibrium involved: carbon dioxide reacts with water to form carbonic acid, which can be represented as: \(\text{CO}_2 + \text{H}_2\text{O} \rightleftharpoons \text{H}_2\text{CO}_3\).
Note that carbon monoxide (CO) does not typically react with water to form carbonic acid under normal natural conditions, so that process is not the main source of carbonic acid.
Also, understand that carbon dioxide reacting with molecular hydrogen (H2) in water is not a common natural pathway for carbonic acid formation.
Finally, recognize that solid calcium carbonate reacting with water produces calcium hydroxide and carbonic acid indirectly, but the primary natural formation of carbonic acid is through the dissolution of carbon dioxide in water.
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