Chemical Reactions and Testing Methods

The video tutorial demonstrates the reaction between dilute sulfuric acid and magnesium carbonate. It involves adding magnesium carbonate to sulfuric acid and testing the gas produced by bubbling it through lime water, which turns cloudy, indicating a chemical reaction.

What are the reactants in the chemical reaction discussed?

• Dilute sulfuric acid and magnesium carbonate

• Concentrated sulfuric acid and magnesium oxide

• Dilute hydrochloric acid and magnesium carbonate

• Concentrated hydrochloric acid and magnesium oxide

What is added to sulfuric acid in the experiment?

• A pinch of calcium carbonate

• A cup of sodium chloride

• A spatula of magnesium carbonate

• A spoonful of magnesium oxide

How is the gas produced in the reaction tested?

• By igniting it with a flame

• By bubbling it through limewater

• By collecting it in a balloon

• By passing it through water

What change is observed in the limewater during the experiment?

• It turns cloudy

• It becomes bubbly

• It turns clear

• It changes color to blue

What is the purpose of using limewater in this experiment?

• To test for the presence of carbon dioxide

• To act as a catalyst

• To neutralize the acid

• To measure the temperature change