Looking at the two reactions and their respective reactants/products, the conclusion is that Reaction 1 is incorrect while reaction 2 is correct.
Precipitation reactions
They are reactions in which precipitates are formed.
The correct equation for reaction 1 would be:
AgNO3(aq)+NaCl(aq)→NaNO3(aq)+AgCl(s)
The precipitate, in this case, is AgCl
For the equation:
K2SO4 (aq) + Co(NO3)2 (aq) ---> CoSO4 (aq) + KNO3 (s)
The precipitate here is KNO3
More on precipitation reactions can be found here: https://brainly.com/question/24161600
