Distance Learning Lab Challenge Quiz

What is the main goal of the distance learning lab challenge?

• To create a colorful chemical reaction

• To fill a ziplock bag with gas using a chemical reaction

• To observe the color change in a solution

• To measure the temperature change during a reaction

Which two household items are used in the chemical reaction for this experiment?

• Sugar and lemon juice

• Vinegar and baking soda

• Salt and water

• Flour and oil

What gas is produced when vinegar reacts with baking soda?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon dioxide

Why is it important to determine the volume of the bag accurately?

• To ensure the bag is colorful

• To calculate the exact amount of reactants needed

• To make the bag heavier

• To change the color of the solution

What is the approximate mass of one teaspoon of baking soda?

• 10 grams

• 5.1 grams

• 2 grams

• 7 grams

How should the molarity of vinegar be calculated?

• By measuring its color

• By converting its percentage to molarity

• By weighing it

• By tasting it

What yield percentage should be assumed for the reaction?

• 100%

• 50%

• 80%

• 30%

Why should the reactants be placed on different sides of the bag?

• To prevent them from reacting too early

• To make the bag look symmetrical

• To make the bag heavier

• To change the color of the bag

What should be done to ensure no excess air is in the bag before sealing?

• Add more vinegar

• Shake the bag vigorously

• Add more baking soda

• Squeeze out all the air

What is required to get full credit for the lab?

• A colorful bag

• A large amount of gas

• A video of the first attempt and all calculations

• A perfectly sealed bag