CH-75
Reactions of acids
Chemistry · Secondary 3 · Easy · Reactions of acids
A student adds excess dilute hydrochloric acid to solid magnesium carbonate. Which gas is produced and what is the correct test for this gas?
- Hydrogen; lighted splint gives a ‘pop’
- Oxygen; glowing splint relights
- Carbon dioxide; turns limewater milky
- Ammonia; moist red litmus paper turns blue
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