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Wow! What do you mean "when elements react", specifically, which elements? Here are the basic reactions though: Combustion:fuel + oxygen -> oxides + energy Synthesis: A + B -> AB Decomposition: AB -> A + B Single Displacement:one element replaces another from a compound: Z + AB -> ZB + A Double Displacement: Elements in different compounds exchange places: AB + XY -> AY + XB ***Smartiiz***

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16y ago
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7y ago

This is a synthesis reaction.
A typical eaxample is the synthesis of ammonia: N2 + 3 H2 = 2 NH3; many other synthesis reaction are known.
This catalyzed reaction is the base of the ammonia industry.

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Q: What type of reaction occurs when elements react?
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