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Acids and Bases

Acids and Bases. pH factor. Acids Sour Taste Less than 7 on pH scale Forms a hydrogen ion (H + ) When mixed with a base, they neutralize each other and form a salt and water Conduct electricity Include: Orange Juice, Lemon Juice, Pepsi/Coke, Vinegar. Acids. Bases

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Acids and Bases

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  1. Acids and Bases pH factor

  2. Acids Sour Taste Less than 7 on pH scale Forms a hydrogen ion (H+) When mixed with a base, they neutralize each other and form a salt and water Conduct electricity Include: Orange Juice, Lemon Juice, Pepsi/Coke, Vinegar Acids

  3. Bases Bitter Taste Greater than 7 on pH scale Forms a hydroxide ion (OH-) When mixed with an acid, they neutralize each other and form a salt and water. Conduct Electricity Includes: Household Cleaners, Antacid, Ammonia Bases

  4. Things to know about Acids and Bases • Dissociation – When either mix with water, they separate to form ions. • Neutralization Reaction – When mixed together, they neutralize to form a salt and water: NaOH(aq) + HCl(aq)-> NaCl(aq) + H2O(l) • A substance is classified as an acid or base depending on the level of acidity in it. This is measured on the pH scale: 7 is neutral. Tests can be done using an acid-base indicator such as litmus paper.

  5. NEUTRAL SUBSTANCES • Do not release H+ ions or OH - ions into solution. • Have a pH of 7 • Taste neither bitter or sour • Feel soothing to touch • Do not always conduct electricity • Includes: Deionized Water, Homogenized Milk, Sugar Water

  6. pH scale 7 Neutral

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