Chemical Reactions Quiz Part A ACARA

Avery, David, and Hannah are in a chemistry lab. They are conducting an experiment and observing a chemical reaction. What does this chemical reaction involve?

• Creating new atoms

• Rearranging atoms

• Combining atoms

• Destroying atoms

Maya, Harper, and Liam are conducting a chemistry experiment. They want to understand what happens to the mass of the substances during the reaction. Can you help them?

• Mass is created during the reaction

• Mass is destroyed during the reaction

• Mass decreases during the reaction

• Mass remains constant during the reaction

Abigail and Benjamin conducted a chemical reaction in their science class. What did they observe as the products of this reaction?

• New substances

• Reactants

• Mass

• Atoms

Benjamin, Lily, and Abigail are in a chemistry class. Their teacher asked them to model a chemical reaction. How can they do this in terms of atoms?

• By creating new atoms

• By rearranging atoms

• By destroying atoms

• By combining atoms

Harper, Arjun, and Nora were conducting a science experiment in their chemistry class. They observed a reaction and wanted to describe it. How can they describe the observed reactions using word equations?

• By using numbers

• By using symbols

• By using letters

• By using words

Arjun, Ethan, and Grace were discussing the role of energy in a chemical reaction while baking a cake. According to them, what happens to the energy during this process?

• Energy remains constant

• Energy decreases

• Energy is destroyed

• Energy is created

Ava, Avery, and Mia are conducting a science experiment in their chemistry class. They want to demonstrate the conservation of mass in a chemical reaction. How can they do this?

• By writing complex chemical equations

• By solving physical equations

• By solving mathematical equations

• By writing and balancing simple chemical equations

During a science experiment in class, Daniel, Avery, and Aria mixed different substances together. Which of the following was not created or destroyed in their chemical reaction?

• Substances

• Atoms

• Mass

• Energy

Aria, Avery, and James were conducting a science experiment in their school lab. They observed that when they mixed certain substances, new substances were formed. What did they observe was rearranged to form these new substances in their chemical reaction experiment?

• Energy

• Mass

• The substances they mixed (Reactants)

• Atoms

Lily, Benjamin, and Luna are conducting a science experiment. They mix two chemicals together. What is the main outcome of their chemical reaction?

• They create a new mass

• They create new atoms

• They generate new energy

• They produce new substances