write 3 short question and answer from atoms and molecules and chemical reaction
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Question1. Name the scientist who laid the foundation of chemical sciences. How ?
Answer. Antoine Laurent Lavoisier, by establishing two important laws of chemical combination.
Question. 2. Define law of conservation of mass.
Answer. It states that, ‘Mass is neither created nor destroyed in a chemical reaction.’ In other-words, the mass of the reactants must be equal to the mass of products.
Question3. What is the atomicity of Argon ?
Answer. Mono atomic.
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what is atoms
ans. The smallest particle of a chemical element that can exist
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