Respuesta :
If a salt has a pH less than 7, then it is an acid. All acids start with a H in there formula. The only compound that starts with an H from the listed options is HCOOK.
So the salt HCOOK has a pH<7
So the salt HCOOK has a pH<7
Answer:
NH4NO3 is the right answer
Explanation:
answer is correct on edge
option B is incorrect