
Rates of Reaction Unit 3 Quiz

Quiz
•
Chemistry
•
10th Grade
•
Medium
Katie Williams
Used 4+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between dilution and concentration mentioned in the text?
The more dilute it is, the more concentrated
The more dilute it is, the less concentrated
The more dilute it is, the more reactive
The more dilute it is, the less reactive
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two chemicals used in the disappearing cross experiment?
Sodium chloride and hydrochloric acid
Sodium thiosulphate and hydrochloric acid
Sodium bicarbonate and sulfuric acid
Sodium hydroxide and nitric acid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is formed when sodium thiosulphate reacts with hydrochloric acid?
A clear solution
A cloudy yellow precipitate of sulphur
A blue solution
A red precipitate of iron
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What color is the precipitate formed in the disappearing cross experiment?
Blue
Red
Yellow
Green
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the disappearance of the cross indicate in the experiment?
The reaction has stopped
The reaction is complete
The reaction is ongoing
The reaction is slow
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the time taken for the cross to disappear?
It indicates the temperature of the reaction
It indicates the speed of the reaction
It indicates the pH of the solution
It indicates the volume of the solution
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you observe and listen for after adding hydrogen peroxide solution to the boiling tube?
Color change
Temperature change
Bubbling
Precipitation
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