Understanding Chemical Reactions with Baking Soda and Vinegar

What is the main purpose of combining baking soda and vinegar in the experiment?

• To test the strength of the candle flame

• To create a new solid substance

• To produce carbon dioxide gas

• To observe a physical change

Why are glass globes placed over the candles during the experiment?

• To prevent the candles from melting

• To enhance the brightness of the flame

• To increase the temperature around the candles

• To ensure the candles are not blown out

What role does oxygen play in the burning of the candles?

• It keeps the flame burning

• It extinguishes the flame

• It reduces the size of the flame

• It changes the color of the flame

What happens to the candle flame when surrounded by carbon dioxide?

• The flame burns brighter

• The flame changes color

• The flame splits into two

• The flame goes out

How does the experiment demonstrate a chemical change?

• By melting the foil cap

• By increasing the temperature of the jar

• By changing the color of the vinegar

• By producing a new gas that affects the candle flame