Li + H2O
Na +H2O
K + H2O
2007-04-01 17:23:05 · 3 answers · asked by Lana 1 in Science & Mathematics ➔ Chemistry
they violently react, releasing hydrogen gas and forming ionic compounds such as NaOH and such.
2007-04-01 17:28:53 · answer #1 · answered by Steven B 6 · 0⤊ 1⤋
They all float, fizz, shoot around the surface, dissolve and give off hydrogen gas, and form strongly alkaline solutions of the metal hydroxide.
Li doesn't melt, but Na and K do.
If lit, Li gives a red flame and Na an orange flame.
K self-ignites to give a lilac (purple) flame.
2007-04-02 04:08:51 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋
Exothermic reactions producing the hydroxide of each and hydrogen evolved .. the metals will float and dart around on the water and will probably ignite by reaction with oxygen of the air.
2007-04-02 06:05:24 · answer #3 · answered by Norrie 7 · 0⤊ 0⤋