A white powder treated with diluted HCl acid dissolves quickly, and the reaction is featured with intensive bubbling. During a flame test of the resultant solution, the flame turns brick red in colour. From the chemical point of view, this white powder could be:
A. Na2CO3 B. BaCO3 C. BaSO4 D. Na2SO4 E. CaCO3
The answer is E. CaCO3, but how would you determine this?
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A white powder treated with diluted HCl acid dissolves quickly, and the reaction is featured with...