I am not certain what the question is.
Bromine: when cool, it is a liquid. Check its boiling point.
Iron: depends on what you mean by "high" mp. "High" is not a very specific term. If I were describing iron, I would focus on malleability, tensile strength, ability to form strong alloys.
potassium-a metal that catches fire whet it reacts with water,
chlorine-a green poisonous gas
bromine-a reddish brown liquid
lithium-the least reactive of the alkali metals
neon-an nonreactive gas
iron-a metal with very high melting point
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well i meant to ask if they are correct, because i had to match them
Potassium metal does NOT catch fire when added to water. The reaction with water is
2K + 2H2O ==> H2 + 2KOH
The reaction is vigorous and it is exothermic. I think it's the hydrogen gas (not K metal) that catches fire.
2K + 2H2O ==> H2 + 2KOH
The reaction is vigorous and it is exothermic. I think it's the hydrogen gas (not K metal) that catches fire.
DrBob222 is wrong.potassium burns with lilac flame when react with water.(of cuz if the reaction is too small,lilac flame is difficult to be observed)
5 answers