RATE OF REACTION

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Yusra Aqilah

Malasia

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RATE OF REACTION


Froggy Jumps RATE OF REACTIONVersión en línea Let's play some game!!! por Yusra Aqilah 1 Which of the following is the correct definition of reaction rate? a The change in the quantity of reactants or products per unit time b The amount of time taken for a reaction to complete c the square of the time taken for a precipitate to form 2 Which of the following is an example of a fast reaction? a The burning of magnesium ribbons in oxygen b The rusting of an iron fence c The process of photosynthesis in plants 3 In sodium thiosulfate and sulfuric acid experiment, why is the 'X' sign no longer visible after some time? a Because a yellow sulfur precipitate is formed b Because oxygen gas is released c Because the sulfuric acid has completely dissolved 4 A reaction is considered a rapid reaction if it takes... a a short time and a high reaction rate b a long time and a high reaction rate c a long time and a low reaction rate 5 Why does food stored in the refrigerator spoil slowly? a low temperatures reduce the rate of decay reactions by bacteria b low temperatures reduce the concentration of oxygen c bacteria die when exposed to cold temperatures 6 If 20 cm³ of hydrogen gas is completely released in 40 seconds, what is the average reaction rate for the reaction? a 0.5 cm³ s⁻¹ b 0.2 cm³ s⁻¹ c 800 cm³ s⁻¹ 7 Which of the following factors does not affect the rate of a reaction? a volume of acid b temperature of the solution c size of the reactants 8 Which of the following is an example of a slow reaction? a rusting of iron fence b neutralization of acids and alkalis c explosion of firecrackers 9 A reaction is considered a slow reaction if it takes... a a long time and a low reaction rate b a short time and a high reaction rate c a long time and a high reaction rate 10 Based on the experiment, if sulfuric acid is replaced with hydrochloric acid that has the same concentration of H⁺ ions, what happens to the reaction rate? a the reaction rate does not change b the reaction rate becomes zero c the reaction rate doubles 11 In which flask does the reaction proceed faster? a Set B b Set A c 12 What are the two main conditions for producing effective collisions between particles? a The particles must have enough energy and the correct collision orientation. b The particles must be large in size and have a strong charge. c The particles must be in a liquid state and at room temperature. 13 What does activation energy (Ea) mean? a The minimum energy that a particle of a substance must overcome to react. b The maximum energy released by a reaction. c Energy absorbed to convert a solid to a liquid.

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RATE OF REACTION

Froggy Jumps

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RATE OF REACTIONVersión en línea

por Yusra Aqilah

Which of the following is the correct definition of reaction rate?

Which of the following is an example of a fast reaction?

In sodium thiosulfate and sulfuric acid experiment, why is the 'X' sign no longer visible after some time?

A reaction is considered a rapid reaction if it takes...

Why does food stored in the refrigerator spoil slowly?

If 20 cm³ of hydrogen gas is completely released in 40 seconds, what is the average reaction rate for the reaction?

Which of the following factors does not affect the rate of a reaction?

Which of the following is an example of a slow reaction?

A reaction is considered a slow reaction if it takes...

Based on the experiment, if sulfuric acid is replaced with hydrochloric acid that has the same concentration of H⁺ ions, what happens to the reaction rate?

In which flask does the reaction proceed faster?

What are the two main conditions for producing effective collisions between particles?

What does activation energy (Ea) mean?