Acids and their Sources Quiz
31 Questions
5 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following best describes the characteristic taste of acids?

  • Bitter
  • Sour (correct)
  • Sweet
  • Salty

    • What happens when a strong acid is dissolved in water?

  • It releases a few H+ ions
  • It only partially breaks down in water
  • It dissociates completely and gives off many H+ ions (correct)
  • It gives off many OH- ions

    • What is the Latin meaning of the word 'acidus'?

  • Sweet
  • Sour
  • Bitter
  • Sharp (correct)

    • What type of acid reacts with metals and carbonates to produce gas?

    <p>Strong acid</p> Signup and view all the answers

    What is another word for a base?

    <p>Alkaline</p> Signup and view all the answers

    Which characteristic is NOT true for bases?

    <p>Contain H+ ions</p> Signup and view all the answers

    What is the measure of how acidic or basic a solution is?

    <p>pH</p> Signup and view all the answers

    Why do bases feel slippery or soapy?

    <p>They react with fatty acids in the skin</p> Signup and view all the answers

    Which pH value represents a neutral solution?

    <p>pH 7</p> Signup and view all the answers

    What is the purpose of an acid-base indicator?

    <p>To change color in the presence of an acid or base</p> Signup and view all the answers

    Which characteristic is NOT true for litmus?

    <p>Is used to measure pH</p> Signup and view all the answers

    What happens when an acid and base react with each other?

    <p>The characteristic properties of both are destroyed</p> Signup and view all the answers

    What is the pH range for edible substances?

    <p>$2-8$</p> Signup and view all the answers

    What is the purpose of a universal indicator?

    <p>To change color through a wide range of pH values</p> Signup and view all the answers

    "pH" stands for which of the following?

    <p>&quot;Potential of Hydrogen&quot;</p> Signup and view all the answers

    An acid is a substance that releases ______ ions in an aqueous solution

    <p>H+</p> Signup and view all the answers

    The more ______ ions, the more acidic the solution

    <p>H+</p> Signup and view all the answers

    A strong acid dissociates completely when in aqueous solution, giving off many ______ ions

    <p>H+</p> Signup and view all the answers

    Acids react with metals and carbonates to produce ______

    <p>gas</p> Signup and view all the answers

    A base is a substance that releases ______ ions in an aqueous solution

    <p>hydroxide</p> Signup and view all the answers

    The more ______ ions, the more basic (or alkaline) the solution

    <p>OH-</p> Signup and view all the answers

    A solution with a pH of 7 is considered ______.

    <p>neutral</p> Signup and view all the answers

    Litmus turns ______ in acidic solutions.

    <p>red/pink</p> Signup and view all the answers

    The compound that separates into sodium ions (Na+) and hydroxide ions (OH-) when dissolved in water is called ______.

    <p>sodium hydroxide (NaOH)</p> Signup and view all the answers

    An acid-base indicator is a compound that will change color in the presence of an ______ or base.

    <p>acid</p> Signup and view all the answers

    Bases feel soapy or slippery because they react with acid molecules in the skin called ______ acids.

    <p>fatty</p> Signup and view all the answers

    The pH scale is a measure of how acidic or basic a solution is, with pH standing for the power of ______ or potential of Hydrogen.

    <p>Hydrogen</p> Signup and view all the answers

    Everything above 7 on the pH scale is considered a ______.

    <p>base</p> Signup and view all the answers

    Mixing acids and bases results in the formation of ______.

    <p>water</p> Signup and view all the answers

    A universal indicator is a mixture of chemicals that changes colors through a wide range of ______ values.

    <p>pH</p> Signup and view all the answers

    The color of some flowers is dependent upon the ______ of the soil.

    <p>pH</p> Signup and view all the answers

    Study Notes

    Acids and Bases

    • Acids have a characteristic sour taste
    • Strong acids dissociate completely in water, releasing many H+ ions
    • The Latin word 'acidus' means sour
    • Acids react with metals and carbonates to produce gas
    • A base is also known as an alkali
    • Bases do not feel slippery or soapy due to their pH, but due to reacting with skin acid molecules
    • The pH scale measures how acidic or basic a solution is
    • pH 7 represents a neutral solution
    • Acid-base indicators change color in the presence of an acid or base
    • Universal indicators change color through a wide range of pH values

    pH Scale

    • pH values below 7 are acidic
    • pH values above 7 are basic or alkaline
    • pH stands for the power of Hydrogen or potential of Hydrogen

    Chemical Reactions

    • Acids release H+ ions in an aqueous solution
    • The more H+ ions, the more acidic the solution
    • Bases release OH- ions in an aqueous solution
    • The more OH- ions, the more basic (or alkaline) the solution
    • Acids react with bases to form salts and water
    • Sodium hydroxide (NaOH) is a compound that separates into sodium ions (Na+) and hydroxide ions (OH-) when dissolved in water

    Properties and Characteristics

    • Litmus turns red in acidic solutions
    • Bases feel soapy or slippery due to reacting with skin acid molecules
    • Edible substances typically have a pH range of 5.5-8.5
    • The color of some flowers is dependent on the pH of the soil

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge about acids and their sources with this quiz. Learn about the properties of acids and common sources of different types of acids.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser