- 1). Label the bottle "bromine water" or "Br 2 (aq)."
- 2). Dissolve the sodium bromine in the hydrochloric acid, mixing the compounds in a flask or beaker. Pour the mixture into the glass bottle.
- 3). Add the bleach to the mixture in the bottle. Cap the bottle and swirl it gently to mix the ingredients.
- 4). Dilute the mixture with distilled water, swirling gently to mix.
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