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Metal + cold water vs. metal + steam?
I have been told that:
metal + cold water -> metal hydroxide + hydrogen
metal + steam -> metal oxide + hydrogen
...yet stream and water are the same thing, can anyone explain this or am I missing something?
@Nakk oxide = MO, hydroxide = MOH ---- where M = metal ????
@Dan but why? steam and water have the same formula.
- NakkielLv 79 years agoFavorite Answer
Oxide and hydroxide use the same elements but differ in how they are bonded.
Edit: Oxide is oxygen bonded with anything. Hydroxide is oxygen bonded with hydrogen. Steam is water in an accelerated, spaced out, heated state. The ONLY difference in the 2 reactions is the hydrogen loses it's bond in the reaction with steam.
- DanielLv 49 years ago
Long story short, it's because of the temperature and state of matter of the water. As cold water, it's cold liquid. As steam, it's a hot gas. This affects how the metal absorbs it.