Rates Of Reaction

Question 1

What are the two reactants in the reaction being studied?

Answer 1

Sodium thiosulphate and hydrochloric acid.

Question 2

True or False: The rate of reaction can be affected by temperature.

Answer 2

True.

Question 3

Fill in the blank: Increasing the concentration of sodium thiosulphate will generally _______ the rate of reaction.

Answer 3

increase.

Question 4

What is one method to measure the rate of reaction between sodium thiosulphate and hydrochloric acid?

Answer 4

By timing how long it takes for a cross to disappear through the solution.

Question 5

Which factor, concentration or surface area, is more relevant in the reaction between sodium thiosulphate and hydrochloric acid?

Answer 5

Concentration.

Question 6

What visual change indicates that the reaction is occurring?

Answer 6

The solution turns cloudy.

Question 7

Multiple Choice: What happens to the rate of reaction when the temperature is increased? A) It decreases B) It stays the same C) It increases

Answer 7

C) It increases.

Question 8

What is the effect of adding a catalyst to the reaction?

Answer 8

It speeds up the rate of reaction.

Question 9

Short Answer: Why is it important to conduct multiple trials when measuring the rate of reaction?

Answer 9

To ensure accuracy and reliability of results.

Question 10

True or False: The volume of hydrochloric acid used does not affect the rate of reaction.

Answer 10

False.