There is no equation that we can see.
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When they react K2SO4 and BaBr2 they'll give 2KBr and BaSO4: SO42-aq + Ba2+aq ---> (BaSO4)s ('s' = solid = precipitating bariumsulfate) 2K+ and Ba2+ are spectator ions (all 'aq' = hydrated in solution)
You're expressing those two reactants as ions. The chemical equation for the reaction between barium and nitrogen is: 3Ba + N2 --> Ba3N2. Or, if you like, the net ionic equation for the formation of the insoluble precipitate barium nitride is: 3Ba+2 + 2N-3 --> Ba3N2.
No, NK cells are not CD3 positive. NK cells do not express the CD3 marker, which is typically found on T cells.
a solution to an equation is the answer
the barium ion Ba2+ and the carbonate ion CO32+
A solution is the answer to an equation.
An equation that has no solution is called an equation that has no solution.
To write the formula for barium bromide (BaBr₂) as a chemical equation, you need a reaction. For instance, the reaction between barium chloride (BaCl₂) and sodium bromide (NaBr) would form barium bromide and sodium chloride (NaCl): BaCl₂ + 2NaBr → 2NaCl + BaBr₂.
In algebraic terms, the solution is the answer to equation.
Every equation has a solution.
To confirm the presence of Ba2+ ions, you can use a sulfate ion-containing solution, such as sulfuric acid (H2SO4), to form a white precipitate of barium sulfate (BaSO4). This precipitate is insoluble in water and confirms the presence of Ba2+ ions in the solution.
Extraneous solution