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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>>> 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. <<<
Solutions :
Nitrogen molecule.
Barium metal is oxidized to Ba2+ cation. Protons (H+) from
water is reduced to hydrogen gas, leaving OH- ions. Hence, products
are Ba(OH)2(aq) and H2(g).
Carbon dioxide dissolves to form carbonic acid (CO2 + H2O -->
H2CO3 --> 2H+ + CO3 2-), of which the carbonate anion (CO3
2-) bonds ionically with the Ba2+ cation to form the insoluble
salt BaCO3(s) which precipitates out as a white solid.