Rate experiments involving precipitation (Edexcel GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What solid forms when sodium thiosulfate reacts with hydrochloric acid?
What solid forms when sodium thiosulfate reacts with hydrochloric acid?
Yellow sulfur
What observable change is used to measure the reaction rate?
What observable change is used to measure the reaction rate?
Solution goes cloudy
What equipment is used to heat the solutions to the required temperature?
What equipment is used to heat the solutions to the required temperature?
Water bath
Where should the conical flask be placed during the experiment?
Where should the conical flask be placed during the experiment?
Over paper with a black mark
When should the timer be stopped in this experiment?
When should the timer be stopped in this experiment?
When the black mark can't be seen
Which variable can be changed to test its effect on reaction speed?
Which variable can be changed to test its effect on reaction speed?
Temperature
What must be kept the same about the volume of solutions used?
What must be kept the same about the volume of solutions used?
Same amounts each time
What must stay constant about the concentration of solutions?
What must stay constant about the concentration of solutions?
Must stay the same throughout
What happens to particles at higher temperatures?
What happens to particles at higher temperatures?
They move faster
Why do reactions happen quicker at higher temperatures?
Why do reactions happen quicker at higher temperatures?
Particles collide more often
What does it mean if the black mark disappears quicker?
What does it mean if the black mark disappears quicker?
Reaction is happening faster
What equipment is used to measure out fixed amounts of the solutions?
What equipment is used to measure out fixed amounts of the solutions?
Measuring cylinder