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Chemistry, Science

7th

grade

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ACIDS BASES AND SALTS

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12 questions

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  • 1. Multiple Choice
    15 minutes
    1 pt
    Most foods are 
    Acid
    Basic
    Neutral
    salts
  • 2. Multiple Choice
    15 minutes
    1 pt
    Why does vinegar help preserve things like pickles? 
    It keeps moisture in. 
    It preserves flavors and crispness
    It kills bacteria that break down foods. 
    It keeps the cells alive
  • 3. Multiple Choice
    30 seconds
    1 pt
    An extremely strong acid would have a pH of...
    1
    7
    9
    14
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