Lesson: The Preparation of Carbon Dioxide Science
In this lesson, we will learn how to prepare carbon dioxide from calcium carbonate and describe how to test for the presence of gaseous carbon dioxide.
What is produced when lemon juice is added to sodium bicarbonate (baking soda)?
When carbon dioxide gas reacts with limewater, a white precipitate is formed. What is a precipitate?
A class tested whether combustion produces carbon dioxide. They followed the method below:
- Light a candle and place it in a glass cylinder.
- Put a glass cover over the cylinder.
- After 5 minutes, remove the glass cover and pour limewater into the cylinder.
- Put the glass cover back on the cylinder.
Which of the following observations would show that carbon dioxide gas was produced by the burning candle?