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Chem. Interactions

Chemical Interactions PH Vocabulary

TermDefinition
Acid Turns blue litmus red. Sour taste. pH of 0 to 6. Form hydrogen ions (H+) in water solution. ex: vinegar, citrus fruits, hydrochloric acid. Always produce water and a salt when they react with bases.
Base Turns red litmus blue. Bitter taste. pH of 8 to 14. Form hydroxide ions (OH-) in water solution. ex: many soaps, Tums and other antacids, baking soda. Always produce water and a salt when they react with acids.
Indicator a substance that changes color in the presence of an acid and a base
Corrosive destroys and damages other substances with which it comes into contact.
Hydrogen Ion the positively charged ion of hydrogen (H+) formed in all aqueous solutions (something mixed with water) of acids.
Hydroxide Ion the negatively charged ion of hydroxide (OH-) formed in all aqueous solutions (something mixed with water) of bases.
pH scale A scale that measures the concentration of hydrogen ions in a substance. (percent hydrogen)
Neutralization A reaction between an acid and a base that produces water and a salt.
Salt salts are ionic compounds that are produced from the neutralization reaction of an acid and a base.