3 - ATOMS AND MOLECULES
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Practice Questions
Test your understanding with targeted questions
What is the definition of an atom?
💡 Hint: Think about the smallest piece of matter.
Can an atom exist independently?
💡 Hint: Consider what happens in a chemical reaction.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the law of conservation of mass state?
💡 Hint: Think about chemical reactions.
True or False: All atoms of a given element are identical.
💡 Hint: Recall Dalton's postulates.
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Challenge Problems
Push your limits with advanced challenges
If 10g of substance A reacts with 15g of substance B, what will be the mass of the products?
💡 Hint: Add the masses of the reactants together.
According to Dalton's atomic theory, how do atoms combine to form compounds?
💡 Hint: Think about how 'friends' combine to form a 'team' in specific numbers.
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