The aqueous solution of two soluble salts are mixed to precipitate an insoluble salt. Give four different equations to support this statement.

Answer 1

Given the very nature of the question, you must have studied some examples. Care to share your ideas on the topic?

Answer 2

Following Steve's suggestion, what adding some specificity to it.

Answer 3

are these correct @DrBOb222 and @Steve

1) NaCl(aq) + AgNO3(aq) �¨ AgCl(s) + NaNO3(aq)
2) CaCl2(aq) + Na2CO3 (aq) �¨ CaCO3(s) + 2NaCl(aq)
3) K2SO4(aq) + Ba(NO3)2 (aq) �¨ BaSO4(s) + 2KNO3(aq)
4) Sr(NO3)2 (aq) + 2NaOH(aq) �¨ Sr(OH)2(s) + 2NaNO3(aq)