Na+1 and I-1; the Ba+2 and SO4-2 precipitate as BaSO4.
two
The spectator ions are Ag+ and (NO3)-.
The spectator ions in this precipitation equation are K+ and NO3-. The non-spectator ions are Pb2+ and I-. They combine to form the precipitate PbI2.
Na+ and Cl-
The product of sodium oxalate (NaC2O4) and silver ions (Ag⁺) is silver oxalate (Ag2C2O4), which is a sparingly soluble compound. In solution, two silver ions can react with one oxalate ion to form the precipitate. Sodium ions (Na⁺) remain in the solution as spectator ions. Thus, the overall reaction can be represented as NaC2O4 + 2Ag⁺ → Ag2C2O4 (s) + 2Na⁺.
Na+ and Cl- are spectator ions.
two
The spectator ions are Ag+ and (NO3)-.
The spectator ions in this precipitation equation are K+ and NO3-. The non-spectator ions are Pb2+ and I-. They combine to form the precipitate PbI2.
In the reaction (2H^+ + SO_4^{2-} + Ca^{2+} + 2I^- \rightarrow CaSO_4 + 2H^+ + 2I^-), the spectator ions are those that do not change during the reaction. Here, the ( H^+ ) ions and ( I^- ) ions are present on both sides of the equation and do not participate in the formation of the precipitate ( CaSO_4 ). Therefore, the spectator ions are ( H^+ ) and ( I^- ).
In the reaction given, the spectator ions are the ions that do not participate in the actual chemical change. In this case, the Na⁺ ions remain unchanged on both sides of the equation, so they are the spectator ions. The OH⁻ and H⁺ ions combine to form water (H₂O), while the Cr species is also involved in the reaction, potentially forming a compound.
In the reaction 2KOH + H2SO4 -> 2H2O + K2SO4, the spectator ions are K+ and SO4^2-. These ions do not participate in the chemical reaction i.e., they remain unchanged before and after the reaction.
The spectator ions are the ions that do not participate in the chemical reaction and remain unchanged on both sides. In this reaction, the spectator ions are Ca2+ and CO32- from CaCl2 and K2CO3, since they appear unchanged in the final products.
The spectator ions are NO3- in this reaction. They are present on both sides of the equation before and after the reaction takes place, so they do not participate in the reaction and can be considered spectators.
The spectator ions in the reaction between silver sulfate and barium nitrate are nitrate (NO3-) ions and sulfate (SO4^2-) ions. These ions do not participate in the formation of the precipitate (barium sulfate) and remain unchanged throughout the reaction.
In the reaction involving Na⁺, OH⁻, Cl⁻, and H₂O, the spectator ions are Na⁺ and Cl⁻. These ions do not participate in the chemical reaction; they remain unchanged in the solution. The key species that participate in the reaction are OH⁻ and H₂O, which can combine to form water or other products depending on the context.
K+ and SO42-