What type of chemical rxn is Na2SO4(aq) +Ba(NO3)2(aq) the product is BaSO4(s) + 2NaNO3(aq)?what is its net ionic equation?

The "type" depends upon how you want it classified. It is a double replacement (some call it double displacement) reaction. It also is a precipitation reaction since BaSO4 is insoluble.

The net ionic equation is
Ba^2+(aq) + SO4^2-(aq) ==> BaSO4(s)
The Na and NO3 are spectator ions.

Dr.Bob can you answer my questions. My name is Julia.. my topic is in Science:Biology

The chemical reaction between Na2SO4(aq) and Ba(NO3)2(aq) to form BaSO4(s) and 2NaNO3(aq) is a double displacement reaction.

The net ionic equation represents the ionic species involved in the reaction. To determine the net ionic equation, we need to first write the balanced molecular equation:

Na2SO4(aq) + Ba(NO3)2(aq) → BaSO4(s) + 2NaNO3(aq)

Next, we can separate the strong electrolytes (compounds that dissociate into ions in aqueous solution) into their respective ions:

2Na+(aq) + SO42-(aq) + Ba2+(aq) + 2NO3-(aq) → BaSO4(s) + 2Na+(aq) + 2NO3-(aq)

Now we can eliminate the spectator ions, which are the ions that appear on both sides of the equation without undergoing any change. In this case, the Na+ and NO3- ions are present on both sides of the equation:

2Na+(aq) + SO42-(aq) + Ba2+(aq) → BaSO4(s)

The net ionic equation is:
2Na+(aq) + SO42-(aq) + Ba2+(aq) → BaSO4(s)

This is the simplified equation that represents the actual chemical change occurring in the reaction.

To determine the type of chemical reaction, we need to analyze the reactants and products. In this case, the reactants are sodium sulfate (Na2SO4) and barium nitrate (Ba(NO3)2), and the products are barium sulfate (BaSO4) and sodium nitrate (NaNO3).

Looking at the reactants, we can see that Na2SO4 contains sodium (Na) and a sulfate ion (SO4). Ba(NO3)2 contains barium (Ba) and two nitrate ions (NO3).

The products are BaSO4, which contains barium and a sulfate ion, and 2NaNO3, which contains two sodium ions and two nitrate ions.

From this information, we can see that the reaction involves the exchange of ions between the reactants.

Specifically, sodium ions (Na+) from Na2SO4 combine with nitrate ions (NO3-) from Ba(NO3)2 to form sodium nitrate (NaNO3). Similarly, barium ions (Ba²+) from Ba(NO3)2 combine with sulfate ions (SO4²-) from Na2SO4 to form barium sulfate (BaSO4).

Therefore, the type of chemical reaction is a double displacement or precipitation reaction, where the cations and anions in two different compounds are swapped.

Now, let's determine the net ionic equation. The net ionic equation shows only the ions that are directly involved in the reaction.

The complete ionic equation with all the ions in the solution would be:

2Na⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2NO₃⁻(aq) → BaSO₄(s) + 2Na⁺(aq) + 2NO₃⁻(aq)

To obtain the net ionic equation, we eliminate the spectator ions (ions that appear on both sides and do not participate in the reaction) from the equation. In this case, the sodium ions and nitrate ions are spectator ions.

Net ionic equation:
Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s)

So, the net ionic equation for the given reaction is Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s).