Then classify the reactions as synthesis decomposition single replacement double replacement (NH4)2SO4+BA(NO3)2. BaSO4+ 2NH4NO3.

To classify the reactions as synthesis, decomposition, single replacement, or double replacement, we need to understand the different types of reactions and their characteristics.

Synthesis: A synthesis reaction is when two or more substances combine to form a more complex substance. The general form of a synthesis reaction is A + B → AB.

Decomposition: A decomposition reaction is the opposite of a synthesis reaction. It occurs when a single compound breaks down into two or more simpler substances. The general form of a decomposition reaction is AB → A + B.

Single Replacement: In a single replacement reaction, an element reacts with a compound, displacing another element from it. The general form of a single replacement reaction is A + BC → AC + B.

Double Replacement: In a double replacement reaction, the positive ions of two different compounds switch places, forming two new compounds. The general form of a double replacement reaction is AB + CD → AD + CB.

Now let's analyze the given reaction: (NH4)2SO4 + BA(NO3)2 → BaSO4 + 2NH4NO3.

In this reaction, we have (NH4)2SO4 and BA(NO3)2 as the reactants. We can see that the ammonium ion (NH4+) from (NH4)2SO4 is replacing the barium ion (Ba2+) in BA(NO3)2. So, it is a single replacement reaction.

The products obtained are BaSO4 and 2NH4NO3.

Therefore, the given reaction (NH4)2SO4 + BA(NO3)2 → BaSO4 + 2NH4NO3 is a single replacement reaction.