(NH4)2S+CuSO4=

The given equation is a chemical reaction between ammonium sulfide [(NH4)2S] and copper sulfate (CuSO4). To understand the reaction, we need to balance the equation by ensuring that the same number of atoms of each element are present on both sides of the equation.

Let's start by breaking down the chemical compounds:

Ammonium sulfide [(NH4)2S]:
(NH4)2S has two ammonium ions (NH4+) and one sulfide ion (S2-).

Copper sulfate (CuSO4):
CuSO4 has one copper ion (Cu2+) and one sulfate ion (SO42-).

Now, let's balance the equation by counting the number of atoms on each side.

On the left-hand side (reactants):
We have 2 ammonium ions (NH4+) and 1 sulfide ion (S2-).

On the right-hand side (products):
We have 1 copper ion (Cu2+) and 1 sulfate ion (SO42-).

To balance the equation, we need to make sure that both sides have the same number of atoms of each element.

Let's balance the sulfur (S) atoms:
On the reactant side, we have 1 sulfide ion (S2-).
On the product side, we don't have any S atoms.

To balance the S atoms, we need to multiply the entire product side by 1:
(NH4)2S + CuSO4 → CuS + (NH4)2SO4

Now, let's balance the nitrogen (N) and copper (Cu) atoms:
On the reactant side, we have 2 ammonium ions (2 NH4+).
On the product side, we have 1 copper ion (1 Cu2+).

To balance the N and Cu atoms, we need to multiply the entire reactant side by 1:
2 (NH4)2S + CuSO4 → CuS + (NH4)2SO4

The balanced chemical equation is:
2 (NH4)2S + CuSO4 → CuS + (NH4)2SO4

This means that when ammonium sulfide reacts with copper sulfate, it produces copper sulfide and ammonium sulfate.