Test
Acids and Bases
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Preguntas del test (11)
1What color is pH 7?
- AGreen
- BBlue
- CRed
2What is the name of the gas produced in the test tube?
- ACarbon Dioxide
- BOxygen
- CHydrogen
- DSulphur Dioxide
3What must happen between the acid and metal particles if they react?
- AThey must get close to each other
- BThey need to swap electrons
- CThey need to collide
- DThey need to avoid each other
4What will increase the rate of the reaction?
- ADecreasing the temprature
- BIncreasing the volume of acid
- CIncreasing the concentration of the acid
- DDecreasing the concentration of the acid
5What would you observe if the reaction time decreased?
- AMore bubbles per minute
- BLess bubbles per minute
- CThe solution would change colour
- DEverything would stay the same
6Increasing the temperature would increase the rate of the reaction because...
- AIt would increase the amount of acid particles
- BIt would increase the amount of magnesium particles
- CIt would increase the Kinetic energy of the acid particles and so they move faster
- DIt would decrease the frequency of collision
7What is the name of the salt produced in the reaction
- AMagnesium Sulphate
- BMagnesium Chloride
- CMagnesium Nitrate
- DCalcium Chloride
8What would be the effect cutting up the Magnesium into smaller pieces?
- AReaction rate would increase
- BReaction rate would decrease
- CReaction rate would stay the same
- DReaction would stop
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?
- AIt increased
- B It decreased
- CIt stayed the same
- DNone was produced
10What is it meant by frequency of collisions?
- AThe number of collisions
- BThe number of collisions per mL
- CThe number of collisions per second
- DThe total number of collisions
11A fire is started using small pieces of wood (kindling) because
- AIt is lighter to carry
- BThe wood has a larger surface area and so burns more quickly
- CThe wood will be drier
- DThe wood is more concentrated
Información
- Descripción
- NB: The following questions are about the reaction between Magnesium and Hydrochloric acid in a test tube
- Autor
- Charli Coop
- Idioma
- English
- Visitas
- 27
- Etiquetas
- Valoración
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