DC5N_C06

Created by Lizawati Eskah

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58 slides

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Explain how increasing the concentration of one or more reactants increases the speed of reaction.

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When a piece of magnesium ribbon is added to 100cm^3 of 2.0 mol/dm^3 hydrochloric acid, hydrogen gas is evolved. The magnesium ribbon took 40 seconds to dissolve completely. What will happen to the time of dissolution of magnesium if 200cm^3 of the same acid is used?

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When a piece of magnesium ribbon is added to 100cm^3 of 2.0 mol/dm^3 hydrochloric acid, hydrogen gas is evolved. The magnesium ribbon took 40 seconds to dissolve completely. What will happen to the time of dissolution of magnesium if 100cm^3 of water is added to the acid?

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Explain how does pressure affect the speed of reaction in gaseous reactant.

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When a piece of magnesium ribbon is added to 100cm^3 of 2.0 mol/dm^3 hydrochloric acid, hydrogen gas is evolved. The magnesium ribbon took 40 seconds to dissolve completely. What will happen to the time of the dissolution of magnesium if the pressure is increased to 2 atmospheres?

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Explain how does a decreased in particle size of solid reactant increases the speed of reaction.

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When a piece of magnesium ribbon is added to 100cm^3 of 2.0 mol/dm^3 hydrochloric acid, hydrogen gas is evolved. The magnesium ribbon took 40 seconds to dissolve completely. What will happen to the time of dissolution of magnesium if the magnesium ribbon is replaced with magnesium powder?

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Explain how does an increased in temperature increases the speed of reaction.

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When a piece of magnesium ribbon is added to 100cm^3 of 2.0 mol/dm^3 hydrochloric acid, hydrogen gas is evolved. The magnesium ribbon took 40 seconds to dissolve completely. What will happen to the time of dissolution of magnesium if the reaction mixture is heated?

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