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Non Life Sciences => Chemistry => Topic started by: miss_maple on 11/12/2008 07:13:03

Title: What forms a diatomic molecule with a triple bond ?
Post by: miss_maple on 11/12/2008 07:13:03

what forms a diatomic molecule with a triple bond ?

(i)write the equation for the reaction between barium and water.
my ans : chemical equation: barium + water → barium oxide + hydrogen ?

(ii) what would you expect to see if carbon dioxide is passed into the solution remaining from the reaction in  (i)[the abv qns]. Give a reason.

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Title: What forms a diatomic molecule with a triple bond ?
Post by: blakestyger on 11/12/2008 17:03:59

Look at the periodic table - Ba is the same grp as Ca (Gp II) so it's chemical properties will be similar.
Drop some in water and you'll get the hydroxide, bubble CO₂ through it and you'll precipitate the carbonate (all carbonates are insoluble except Na).

Title: What forms a diatomic molecule with a triple bond ?
Post by: RD on 11/12/2008 20:02:05

Quote

The triple bond in molecular nitrogen (N₂) is one of the strongest in nature (http://en.wikipedia.org/wiki/Nitrogen).

Title: What forms a diatomic molecule with a triple bond ?
Post by: lightarrow on 12/12/2008 20:06:34

Quote from: blakestyger on 11/12/2008 17:03:59

(all carbonates are insoluble except Na).

Many other carbonates are soluble:

K₂CO₃
Rb₂CO₃
Cs₂CO₃
(NH₄)₂CO₃

Li₂CO₃ is soluble a little.

Title: What forms a diatomic molecule with a triple bond ?
Post by: blakestyger on 12/12/2008 22:36:07

OK - it's been a long time. [:I]

Title: What forms a diatomic molecule with a triple bond ?
Post by: miss_maple on 16/12/2008 11:00:58

oh . ok . learnt alot. THANK YOU everyone . how about the universal indicator ? what colour does it produce when in acid, alkali and neutral ?

Title: What forms a diatomic molecule with a triple bond ?
Post by: RD on 16/12/2008 12:53:15

Quote from: miss_maple on 16/12/2008 11:00:58

how about the universal indicator ?

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