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Acids and Bases

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  • Alkalis have a pH (lower, greater) than 7.
    greater
  • You can use an i_______r to detect whether a solution is acidic or alkaline.
    indicator
  • The ______ (weighing, pH) scale gives a numerical value to how acidic or alkaline a solution is.
    pH
  • As the concentration of H⁺ ions increases, the pH (increases,decreases).
    decreases
  • Solutions of acids can conduct __________ (electricity, elasticity) due to the presence of ions.
    electricity
  • Harmful and corrosive acids. ______(mineral, organic) Acids
    Mineral Acids
  • Weak alkalis have a (lower, greater) concentration of hydroxide ions compared to strong alkalis.
    lower
  • Neutral substances, such as pure water, have a pH of ____.
    7
  • Neutralization is a chemical reaction between an acid and a base that produces w____ and a s___.
    water and salt
  • Acid dissolved in water is found in Coca-Cola, Pepsi, and other fizzy drinks. C_______ Acid
    Carbonic Acid
  • Acids present in animal and plant materials. O______ Acids
    Organic Acids
  • Hydrochloric acid (HCl) is an example of a (strong, weak) acid.
    strong
  • Ammonia solution is an example of a (weak, strong) alkali.
    weak
  • The acid found in vinegar is __________(carbonic, acetic) acid.
    acetic acid
  • What pH value do acids have? (less than 7, greater than 7)
    Acids have a pH less than 7.
  • What is the most common indicator used to detect acidity or alkalinity? L_____ p____
    Litmus paper
  • The more acidic a solution, the (lower,greater) the pH.
    lower
  • In pure water, the concentration of hydrogen ions and hydroxide ions are _____ (equal, not equal).
    equal
  • Give at least one example of strong alkalis.
    Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH)
  • What color is litmus in a neutral solution? P_____
    Purple
  • Weak acids ________ (partially, completely) ionize in water.
    partially
  • Sulfuric Acid. (mineral or organic)
    mineral
  • Ammonia. (weak alkali or strong alkali)
    weak alkali
  • Hydrogen is common to all _____. ( acids, base)
    acids
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