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CHEMISTRY (TB)

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    ACIDS, BASES AND SALTS
  •   Study   Slideshow
  • WHAT IS AN ACID?
    SOUR TASTE, STINGING FEELING, CORROSIVE, pH < 7, PRODUCES HYDROGEN IONS IN WATER, CAN CONDUCT ELECTRICITY
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  • NAME THE TWO TYPES OF ACIDS
    ORGANIC ACIDS AND MINERAL ACIDS
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  • Sulfuric acid is a _____________ acid and Citric acid is an ___________ acid.
    Mineral, Organic
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  • What is Litmus? ( List 3 things)
    It is the most used indicator. Extracted from lichens. It is purple in neutral solution, red in acidic solution and alkalis turn litmus solution blue.
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  • What is Litmus paper?
    Paper soaked in litmus solution.
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  • Substances that change color if they are put into an acid or alkaline solution.
    Indicators
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  • Why has this blue litmus paper turned red?
    It has been dipped into an acidic solution.
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  • Red Litmus paper turns blue. The solution is _______ .
    Alkaline
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  • I am a mixture of indicator dyes, help to know if the solution is acidic or alkaline. Who am I ?
    Universal Indicator
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  • On the pH scale, what could 1,2,3,4,5,6,7,8,9,10,11,12,13,14 be?
    pH 7 is neutral, pH less than 7 is acidic, pH more than 7 is alkaline.
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  • Name the element common to all acids.
    Hydrogen (H)
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  • This ion makes the solution acidic.
    Hydrogen ion (H+)
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  • Aqueous HCl is acidic because of oxygen ions. True/False
    False (H+ ions)
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  • What is the difference between an acidic and alkaline solution?
    Acidic (H+) Alkaline (OH-) ions
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  • Define an oxide.
    An oxide is a compound of oxygen and another element.
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  • List 2 properties of Acidic oxides.
    1) They are oxides of non metals. 2) They are gases at room temperature.
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