How is carbonic acid formed?

Related questions

• How do resonance structures affect acidity?
• How does carbon dioxide change the acid-base condition of a solution?
• Why do strong acids have a low pH?
• Is neutralization a double replacement reaction?
• Why is NaH a strong base?
• Is HBr a strong acid?
• Is HF a strong acid?
• Why does neutralization occur?
• Do strong acids completely dissociate in water?
• How can I calculate pH of weak acid?