Exploring Endothermic and Exothermic Reactions

Miss Reese conducts a lab on endothermic and exothermic reactions, focusing on safety and data collection. The lab is divided into two parts: the first involves citric acid and baking soda, demonstrating an endothermic reaction, while the second involves magnesium and hydrochloric acid, showing an exothermic reaction. Safety measures, such as neutralizing acids with baking soda, are emphasized. Students are tasked with observing qualitative and quantitative data to determine the nature of the reactions.

What is used to neutralize an acid spill in the lab?

• Baking soda

• Vinegar

• Salt

• Water

What safety measure is taken immediately after a spill in the lab?

• Evacuating the lab

• Neutralizing with baking soda

• Calling a janitor

• Washing with water

What type of reaction occurs when citric acid and baking soda are mixed?

• Neutralization

• Exothermic

• Endothermic

• Combustion

What gas is released during the reaction between citric acid and baking soda?

• Nitrogen

• Carbon dioxide

• Hydrogen

• Oxygen

What is the final temperature reached in the reaction between citric acid and baking soda?

• 35.0 degrees Celsius

• 22.5 degrees Celsius

• 4.5 degrees Celsius

• 0 degrees Celsius

What is the purpose of using a styrofoam cup in the experiments?

• To insulate the reaction

• To prevent spills

• To measure liquids

• To mix chemicals

What type of acid is hydrochloric acid?

• Neutral acid

• Strong acid

• Weak acid

• Basic acid

What gas is produced in the reaction between magnesium and hydrochloric acid?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

What is the final temperature reached in the reaction between magnesium and hydrochloric acid?

• 22.5 degrees Celsius

• 35.0 degrees Celsius

• 0 degrees Celsius

• 4.5 degrees Celsius

Why shouldn't hydrochloric acid be poured down the drain?

• It can cause clogs

• It's too expensive to waste

• It can corrode the pipes

• It's illegal to do so