Energy Change and Reaction Rate | Baamboozle - Baamboozle

The Collision Theory states that...

The reactant particles must collide and the collisions must have enough energy and correct orientation to be successful

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Do REACTANTS in an Endothermic Reaction have a higher or lower energy than the products?

lower

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What apparatus do we use to measure the gas volume?

Gas syringe

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If a chemical reaction is EXOTHERMIC, the temperature would....

increase

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How does temperature relate to the rate of reaction? Explain using the collision theory

as the temperature increases, the particles will gain more kinetic energy, the collision frequency also increases, and so the reaction rate increases

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In the reaction between magnesium and hydrochloric acid, why do we need to clean the magnesium ribbon with sand paper?

to remove the layer of magnesium oxide on the magnesium ribbon

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Looking at the rate graph: How can you tell from it when the reaction was over?

The curve goes flat

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A change in temperature, formation of bubbles, precipitate forms, color change, change in smell, difficult to reverse are all signs of ?

Chemical Reaction

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ENDOTHERMIC OR EXOTHERMIC: Ice cubes in your glass of soda melt.

Endothermic

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How does reactant concentration relate to the rate of reaction? Explain using the collision theory

as the concentration increases, the number of particles per volume increases, increasing the collision frequency, the rate also increases

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Is photosynthesis an Exothermic or an Endothermic reaction?

Endothermic (light energy is absorbed)

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What is a catalyst?

A catalyst is a substance that speeds up a chemical reaction by providing an alternative pathway with lower activation energy

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