Chemical Reactions and Gas Production

Kailane, an actress from the Museu da Vida, demonstrates a simple scientific experiment to inflate a balloon without blowing. The experiment uses vinegar and baking soda to create a chemical reaction that produces carbon dioxide, inflating the balloon. The video provides step-by-step instructions and explains the science behind the reaction, encouraging viewers to try it at home and share their results.

Who is the presenter of the experiment?

• Pedro

• Kailane

• João

• Maria

What is the main purpose of the experiment?

• To change the color of a liquid

• To make a rocket

• To create a volcano

• To inflate balloons without blowing

Which of the following is NOT a material needed for the experiment?

• A candle

• 100 ml of vinegar

• A balloon

• Three teaspoons of baking soda

What is used as a funnel in the experiment?

• A glass jar

• A plastic bottle

• A metal tube

• A paper cone

Why is it important to be careful when attaching the balloon to the bottle?

• To keep the bottle from tipping over

• To avoid spilling vinegar

• To prevent the balloon from popping

• To ensure the baking soda doesn't fall into the bottle prematurely

What should you do after attaching the balloon to the bottle?

• Remove the balloon

• Lift the balloon to let the baking soda fall in

• Add more vinegar

• Shake the bottle

What gas is produced during the chemical reaction?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

What happens to the pressure inside the bottle during the reaction?

• It stays the same

• It fluctuates

• It decreases

• It increases

What is the common name for carbon dioxide?

• Oxygen

• Hydrogen

• Carbon monoxide

• Carbonic gas

What do we exhale during respiration?

• Nitrogen

• Oxygen

• Hydrogen

• Carbon dioxide