Respuesta :

Answer:

this is very easy to solve

  1. (NH4)2 Co3,(NH4)2 So4,( NH4)3 Po4
  2. k2 co3, k2 so4,k3 Po4
  3. zn oh2, zn (No3)2, zn3 (Po4)
  4. ca oh2
  5. fe oh3, fe(No3)3, fe2 (co3)3, fe2 (so4)3

this is a answer I am very sure

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