25. what type and how many atoms are in fe2(so4)3?

There are a total of 17 atoms in Fe2(SO4)3.

A compound is formed when atoms of elements combine chemically together. A compound is defined as a group of elements which are chemically combined together.

In the compound Fe2(SO4)3, there are;

Two iron atomsthree sulfur atomstwelve oxygen atoms

This makes a total of 17 atoms in the compound Fe2(SO4)3. Iron is a metal while oxygen and sulfur are nonmetals.

Learn more: link

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na