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vesna_86 [32]
2 years ago
5

How were the compounds that formed when calcium ion solution was mixed with the anion solutions different from the compounds tha

t formed when barium ion solution was mixed with the anion solutions?

Chemistry
1 answer:
givi [52]2 years ago
6 0

A confirmatory test of sodium hydroxide and potassium chromate can be used to distinguish between a solution of calcium ion and barium ion.

The test for cations can be used to distinguish calcium ion from barium ion.

  • Calcium ion (Ca²⁺) forms a white precipitate with a drop of sodium hydroxide which is insoluble in excess.
  • Barium ion (Ba²⁺) forms a yellow precipitate with potassium chromate.

Thus, a confirmatory test of sodium hydroxide and potassium chromate can be used to distinguish between a solution of calcium ion and barium ion.

Learn more about about confirmatory test of cations here: brainly.com/question/1969246

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OlgaM077 [116]

Given reactions:

(A)   6CO2(g) + 6H2O(l) + sunlight → C6H12O6(aq) + 6O2(g)

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Exothermic reactions are those which proceed with the release of heat/energy. In contrast, endothermic reactions proceed with the absorption of energy in the form of heat or light.

Since reaction A required sunlight, it is endothermic. Reaction B releases energy, hence exothermic

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B is exothermic


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