Carbonates Flashcards

All 3 cards in this deck

Which gas is produced when a carbonate reacts with a dilute acid?

Carbon dioxide.

What are the steps to test a substance for carbonate ions?
e.g. testing a white solid thought to be calcium carbonate

1. Add dilute acid — the solid fizzes.
2. Bubble the gas given off through limewater.
3. Limewater turns milky (cloudy) — carbonate ions are present.

True or false? A carbonate reacting with dilute acid gives off hydrogen gas.

False. It gives off carbon dioxide, which turns limewater milky.