Farzz_
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(b) B and C are ionic compounds of two different Group 1 elements.
The molar masses of B and C are both approximately 140gmol–1.
A student dissolves B and C in water in separate test tubes and analyses the solutions.
The observations are shown below.
Test
Observation
B(aq) C(aq)
Addition of HNO3(aq)
followed by BaCl
2(aq)
bubbles
no change
no change
white precipitate
Use this information and the observations to identify the formulae of B and C.
Explain your reasoning.
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charco
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(Original post by Farzz_)
(b) B and C are ionic compounds of two different Group 1 elements.
The molar masses of B and C are both approximately 140gmol–1.
A student dissolves B and C in water in separate test tubes and analyses the solutions.
The observations are shown below.
Test
Observation
B(aq) C(aq)
Addition of HNO3(aq)
followed by BaCl
2(aq)
bubbles
no change
no change
white precipitate
Use this information and the observations to identify the formulae of B and C.
Explain your reasoning.
your lack of formatting makes the data difficult to ascribe.

But to give you a guide:
acids react with carbonates and hydrogen carbonated making carbon dioxide
barium chloride gives a white precipitate with carbonates and sulfates.
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