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A volume of equimolar strong acid like HCl
is mixed with an equal volume of equimolar
strong base like NaOH in a beaker of water.
What exists after the reaction?
1. mostly water molecules and HCl, NaOH,
and NaCl molecules
2. mostly water molecules and Na+ and Cl−
ions
3. mostly water molecules and NaCl
4. mostly water molecules and H+ ions and
OH− ions and NaCl molecules

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