5.1 - What is a Chemical Reaction?
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Practice Questions
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What are 'reactants' in a chemical reaction?
💡 Hint: Think about what you start with before a reaction occurs.
Give an example of a physical change.
💡 Hint: Changes in form or appearance without creating something new.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a chemical reaction involve?
💡 Hint: Remember atoms cannot be created or destroyed.
True or False: Chemical changes can be easily reversed.
💡 Hint: Think about burning or rusting.
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Challenge Problems
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Explain how the process of respiration can be classified. What are the reactants and products?
💡 Hint: Remember it involves breaking down a substance to create new forms.
Consider the reaction when vinegar and baking soda are mixed. Identify the indicators of a chemical change observed.
💡 Hint: What signs tell you that something new is happening?
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