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Igcse endothermic and exothermic

Quiz by Jake Piner Villagonzalo

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36 questions
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  • Q1
    Which of the following is a chemical reaction?
    Stirring sugar in coffee
    Tying a shoelace
    Breaking a pencil in half
    Baking soda mixed with vinegar to produce gas bubbles
    30s
  • Q2
    What happens when iron reacts with oxygen in the presence of water?
    Iron becomes lighter in color
    Rust forms on the surface of the iron
    Iron becomes magnetic
    Iron melts and evaporates
    30s
  • Q3
    What type of reaction occurs when a substance changes color?
    Biological reaction
    Physical reaction
    Emotional reaction
    Chemical reaction
    30s
  • Q4
    What is the product of the reaction between hydrochloric acid and sodium hydroxide?
    Hydrogen gas
    Oxygen gas
    Salt and water
    Carbon dioxide gas
    30s
  • Q5
    What happens when vinegar is mixed with baking soda?
    Fizzing and bubbling as carbon dioxide gas is released
    The mixture becomes warm to the touch
    The baking soda dissolves completely
    The vinegar turns red in color
    30s
  • Q6
    Which of the following is an example of a chemical reaction involving combustion?
    Mixing salt and sugar together
    Burning wood to produce heat and light
    Blowing up a balloon
    Cutting paper with scissors
    30s
  • Q7
    What happens when baking powder is mixed with water?
    The water changes color
    The baking powder dissolves completely
    The mixture turns solid
    Bubbles form and the mixture rises
    30s
  • Q8
    What is the result of the reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate)?
    The baking soda dissolves completely in the vinegar
    The vinegar becomes hot to the touch
    The mixture turns purple in color
    Fizzing and bubbling as carbon dioxide gas is released
    30s
  • Q9
    What happens when iron (Fe) reacts with oxygen (O2) in the air?
    Iron oxide (rust) is formed
    Iron evaporates into a gas
    Iron changes color to green
    Iron becomes shiny and reflective
    30s
  • Q10
    What happens when a light splint is inserted into a test tube of hydrogen gas?
    It produces a bright flash of light
    It creates a foul odor
    It makes a 'squeaky pop' sound
    It turns the gas yellow
    30s
  • Q11
    What is the chemical symbol for hydrogen?
    H
    Li
    He
    O
    30s
  • Q12
    What type of reaction occurs when hydrogen gas reacts with oxygen gas to form water?
    A precipitation reaction
    An acid-base reaction
    A combustion reaction
    A redox reaction
    30s
  • Q13
    What is the color of hydrogen gas?
    Yellow
    Colorless
    Green
    Blue
    30s
  • Q14
    What is the formula for hydrogen gas?
    He
    HO
    H2
    Hg
    30s
  • Q15
    What is the odor of hydrogen gas?
    Pungent
    Rotten eggs
    Odorless
    Sweet
    30s

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