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hydrochloric acid (in stomach) lies in pH1 and so does sulfuric acid (in car batteries), the most acid rain ever recorded lies in pH3 and so does vinegar (ethanoic acid). Orange Juice in pH 5 and clean rain in pH6. distilled water is neutral so it's pH7. Toothpaste is pH9 smelling salts (ammonia) pH11, washing soda, pH12 and caustic soda pH14.

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15y ago

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