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Accepted Answer
Question:

2 Oxygen (O) + 2 Hydrogen (H)

Solution: 2 molecules of water (H₂O)
Chemical Equation: 2O + 2H₂ → 2H₂O
Explanation: This reaction doesn't occur directly as written. Oxygen typically exists as O₂ (diatomic oxygen) and reacts with hydrogen (H₂) to form water (H₂O). The balanced equation is 2H₂ + O₂ → 2H₂O. Think of it like this: you need two hydrogen molecules (H₂) to react with one oxygen molecule (O₂) to create two water molecules (H₂O). 🧪💥💧 Experimentally, you'd observe a combustion reaction — a burst of heat and the formation of water vapor if you carefully mixed hydrogen and oxygen gases and ignited them (don't try this at home!).

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