The specific molecules that bond together during a reaction depend on the type of chemical reaction and the reactants involved. Here are a few examples to illustrate different types of reactions and the molecules involved:
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Synthesis Reaction: In a synthesis reaction, two or more reactants combine to form a single product. For example:
- Reactants: Hydrogen gas (H₂) and oxygen gas (O₂)
- Product: Water (H₂O)
- Reaction: 2 H₂(g) + O₂(g) → 2 H₂O(l)
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Decomposition Reaction: In a decomposition reaction, a single compound breaks down into two or more simpler products. For example:
- Reactant: Calcium carbonate (CaCO₃)
- Products: Calcium oxide (CaO) and carbon dioxide (CO₂)
- Reaction: CaCO₃(s) → CaO(s) + CO₂(g)
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Combustion Reaction: In combustion reactions, a hydrocarbon reacts with oxygen, producing carbon dioxide and water. For example:
- Reactant: Octane (C₈H₁₈)
- Products: Carbon dioxide (CO₂) and water (H₂O)
- Reaction: 2 C₈H₁₈ + 25 O₂ → 16 CO₂ + 18 H₂O
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Redox Reaction: In reduction-oxidation (redox) reactions, electrons are transferred between molecules. For example:
- Reactants: Iron(III) oxide (Fe₂O₃) and carbon (C)
- Products: Iron (Fe) and carbon dioxide (CO₂)
- Reaction: Fe₂O₃ + 3 C → 2 Fe + 3 CO₂
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Exchange Reaction: In a double displacement reaction, two compounds exchange ions or elements. For example:
- Reactants: Silver nitrate (AgNO₃) and sodium chloride (NaCl)
- Products: Silver chloride (AgCl) and sodium nitrate (NaNO₃)
- Reaction: AgNO₃ + NaCl → AgCl(s) + NaNO₃
These examples illustrate the variety of ways molecules can bond or react with each other during chemical reactions. If you have a specific reaction in mind, please provide more details for a tailored explanation!