ACIDS : sour taste, H3O+ ions, pH less than 7 , fruits and juices, reactive with metals , turns blue litmus to red , NOT soapy or slick feeling , BOTH : corrosive , conducts electricity , harmful to skin, BASES : bitter taste , OH- ions , pH more than 7, found in many cleaning products , not reactive with metals, feels slippery , turns red litmus paper to blue ,

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