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What is a chemical reaction?

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A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products) through the rearrangement of atoms.

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Can atoms be created or destroyed in a chemical reaction?

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No, according to the law of conservation of mass, atoms cannot be created or destroyed in a chemical reaction; they can only be rearranged.

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What is a chemical formula?

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A chemical formula is a symbolic representation of the composition of a substance, indicating the types and numbers of atoms present.

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What is the difference between synthetic and natural medicines at the atomic level?

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At the atomic level, synthetic and natural medicines can have the same molecular structure; the difference lies in their source and production methods.

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What are reactants in a chemical reaction?

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Reactants are the starting substances that undergo change during a chemical reaction.

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What are products in a chemical reaction?

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Products are the substances that are formed as a result of a chemical reaction.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What role do catalysts play in chemical reactions?

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Catalysts are substances that speed up chemical reactions without being consumed in the process.

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What is an exothermic reaction?

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An exothermic reaction is a chemical reaction that releases energy, usually in the form of heat.

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What is an endothermic reaction?

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An endothermic reaction is a chemical reaction that absorbs energy from its surroundings.