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Accepted Answer
Question:

2 Hydrogen (H) + 1 Oxygen (O)

Solution: Water (H₂O)
Chemical Equation: 2H₂ + O₂ → 2H₂O
Explanation: Two molecules of diatomic hydrogen (H₂) react with one molecule of diatomic oxygen (O₂) to produce two molecules of water (H₂O). This is a highly exothermic reaction, meaning it releases a significant amount of energy 🔥. Experimentally, you could observe this by mixing hydrogen and oxygen gases in a controlled environment (with appropriate safety precautions!) and igniting the mixture. The resulting reaction produces a significant amount of heat and forms water vapor 💧 which can be condensed to liquid water. The reaction is often used in fuel cells 🔋for electricity generation.

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