scientific notation : answer
The spectator ions in the reaction between aqueous 
and aqueous HCl would be 
and 
ions.
<h3>What are spectator ions?</h3>
Spectator ions are anions or cations that exist both as reactants and as products in a reaction. Their forms remain unchanged both in the reactants and in the products.
Aqueous and aqueous HCl react according to the following equation:
Before the reaction, and existed in the reactants as and HCl respectively. After the reaction, and exist as 
in the product.
Thus, the spectator ions in this case are and ions because their forms did not change after the reaction.
More on spectator ions can be found here: brainly.com/question/28913274
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-Millie
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