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The Rubidium valance shell is a radio active substance
they will ignite ( burst into flames )
When a metal oxide reacts with an acid a slat and water are formed.
A corresponding metal salt and water are produced.
gold not reacts with water but reacts with Aqua regia HCl(3) : HNO3 (1)
I believe that you think to alkali metals (ex. sodium).
Diamond can disintegrate if heated enough and will give off carbon dioxide on water and disappear Any of the alkaline metals will burst into flames
The Rubidium valance shell is a radio active substance
they will ignite ( burst into flames )
When a metal oxide reacts with an acid a slat and water are formed.
copper
rust
Hydrogen
Water
Metal hydroxide + hydrogen gas
I had the same quesiton on a worksheet in my Chemistry class .... "Which metal reacts quickly with when water when it is finely powdered?" The answer is Magnesium .
A corresponding metal salt and water are produced.