2️⃣Carbon Dioxide

Question 1

What is the equation for carbon dioxide

Answer 1

Calcium carbonate➕hydrochloric acid➡️calcium chloride➕water➕carbon dioxide

Question 2

What chemicals are required in the preparation of carbon dioxide

Answer 2

Hydrochloric acid 🧪
Marble chips (calcium carbonate) 💎

Question 3

What is the test for carbon dioxide?

Answer 3

Bubble gas into lime water. Turns water from colourless milky white.

Question 4

Give two observations when calcium carbonate is added to hydrochloric acid in the experiment for carbon dioxide

Answer 4

Fizzing bubbles of gas
Calcium carbonate disappears

Question 5

Give 3 physical properties of carbon dioxide

Answer 5

Gas
Colourless
Odourless