Identify unknown solutions

Chemistry Level 2

There are 2 solutions X X and Y Y . Using the neutral (purple) litmus to test, the solution X X doesn't make any changes to the litmus. However, the solution Y Y makes the litmus turn blue.

If those 2 solutions X , Y X, Y are mixed together, there will be some precipitate.

What are the chemical formulas of X X and Y Y ? Choose the best answer (in order X and Y)

B a ( N O 3 ) 2 Ba(NO_3)_2 and K 2 S O 4 K_2SO_4 C a C l 2 CaCl_2 and N a 2 C O 3 Na_2CO_3 N a 2 S O 4 Na_2SO_4 and B a C l 2 BaCl_2 F e C l 3 FeCl_3 and N a 2 C O 3 Na_2CO_3

Tin Le by Tin Le , 15, Vietnam

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1 solution

Pradeep Tripathi
May 12, 2020

CaCl2 is a neutral salt and Na2CO3 is a basic salt.

On mixing a white ppt. of CaCO3 is formed.

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