| Quiz | Rate of reaction |
|---|---|
| Name | |
| Result | PASSED |
| Score | 37 / 41 (90.2%) |
| Passing score | 32.8 |
| Quiz took | 2 min 05 sec |
| Quiz finished at | 2025-01-05 16:42:55 |
We can plot the amount of product formed against time on a graph. The steeper the slope of the curve, the ________ the reaction.
The reaction is at its fastest at
The amount of reactant is greatest at
The maximum number of reactant molecules are reacting per second at
The reaction is slowing down at
The amount of reactant has decreased at
At this stage, all of the reactant has been used up
There is no reactant, so no more product forms
The reaction has stopped
Mean rate of reaction is calculated by
80 grams of magnesium chloride was produced from a reaction between magnesium and chlorine over a period of 20 seconds. Calculate the mean rate of reaction.
25 cm3 of oxygen gas was reacted with potassium over a period of 100 seconds. Calculate the mean rate of reaction.
14 grams of zinc was reacted with sulfuric acid over a period of 28 seconds. Calculate the mean rate of reaction.
120 cm3 of oxygen gas was reacted with potassium over a period of 60 seconds. Calculate the mean rate of reaction.
We can plot the amount of product formed against time on a graph. The __________ of the curve tells us the rate of reaction.
We can plot the amount of product formed against time on a graph. The reaction has finished when the curve
280g of lithium were produced in 10 seconds. Determine the mean rate of reaction in terms of mol / s. Ar N = 14
640g of methane were produced in 10 seconds. Determine the mean rate of reaction in terms of mol / s. Ar C = 12, Ar H = 1
Use the tangent to estimate the rate of reaction at 30 seconds
For a reaction to occur it is necessary for the reacting particles to hit one another. This is known as
When a reaction takes place, the reacting particles
For a reaction to take place, the colliding particles must have enough
The __________ of successful collisions determines the rate of the chemical reaction
Frequency means
The higher the concentration of reactants, the faster the rate of reaction because
If you take a solid reactant and break it up into smaller pieces, the rate of reaction will be
If you take a solid reactant and break it up into smaller pieces, the rate of reaction will be faster. This is because smaller pieces have a _________ surface area to volume ratio
The _________ is the minimum amount of energy that the particles need in order to react (in other words to collide successfully).
Apart from the activation energy, temperature also increases the rate of reaction because at higher temperatures, the frequency of collisions increases. This is because at higher temperatures, the particles are _____________ and colliding more frequently.
___________ increase the rate of chemical reactions by providing a different pathway with a lower activation energy barrier
___________ are not used up during reactions. Therefore they can be reused.
By using a catalyst, we can make a reaction faster without increasing the __________. This saves energy and money.
This diagram shows
This diagram shows
Cataylsts in living organisms are known as
Which of the following is the correct way to show the reaction to produce ammonia, using iron as a catalyst?
Which of the following sentences is true?
Which of the following is NOT an effective way to measure the rate of a reaction?
To measure the volume of a gas given off in a chemical reaction, you can use a
Sodium thiosulfate and HCl are both clear solutions which react to form a
Magnesium and HCl react to produce