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adding aqueous HCl to a saturated solution of sodium ions and chloride ions to cause the precipitation of NaCl(s). this is an example of what we describe as the common ion effect.
the ratio of the concentration of the products to the concentration of the reactants in a...
centre part of an atom with positive charge concentrated in a tiny kernel.
a neutral particle in the nucleus with almost the same mass as the proton.
no energy is gained or lost during a chemical reaction.