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Quiz

Acids and Bases

Charli Coop 11 Fragen

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Fragen in diesem Quiz (11)

  1. 1What color is pH 7?
    1. AGreen
    2. BBlue
    3. CRed
  2. 2What is the name of the gas produced in the test tube?
    1. ACarbon Dioxide
    2. BOxygen
    3. CHydrogen
    4. DSulphur Dioxide
  3. 3What must happen between the acid and metal particles if they react?
    1. AThey must get close to each other
    2. BThey need to swap electrons
    3. CThey need to collide
    4. DThey need to avoid each other
  4. 4What will increase the rate of the reaction?
    1. ADecreasing the temprature
    2. BIncreasing the volume of acid
    3. CIncreasing the concentration of the acid
    4. DDecreasing the concentration of the acid
  5. 5What would you observe if the reaction time decreased?
    1. AMore bubbles per minute
    2. BLess bubbles per minute
    3. CThe solution would change colour
    4. DEverything would stay the same
  6. 6Increasing the temperature would increase the rate of the reaction because...
    1. AIt would increase the amount of acid particles
    2. BIt would increase the amount of magnesium particles
    3. CIt would increase the Kinetic energy of the acid particles and so they move faster
    4. DIt would decrease the frequency of collision
  7. 7What is the name of the salt produced in the reaction
    1. AMagnesium Sulphate
    2. BMagnesium Chloride
    3. CMagnesium Nitrate
    4. DCalcium Chloride
  8. 8What would be the effect cutting up the Magnesium into smaller pieces?
    1. AReaction rate would increase
    2. BReaction rate would decrease
    3. CReaction rate would stay the same
    4. DReaction would stop
  9. 91g of magnesium was placed in 10 mL of acid. The total amount of hydrogen produced was measured. The experiment was then repeated with 1g of magnesium cut into smaller pieces. What was the total effect on the total hydrogen produced?
    1. AIt increased
    2. B It decreased
    3. CIt stayed the same
    4. DNone was produced
  10. 10What is it meant by frequency of collisions?
    1. AThe number of collisions
    2. BThe number of collisions per mL
    3. CThe number of collisions per second
    4. DThe total number of collisions

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Beschreibung
NB: The following questions are about the reaction between Magnesium and Hydrochloric acid in a test tube
Sprache
English
Aufrufe
27
Schlagwörter
scienceyear 10
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