Rate experiments involving precipitation (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What colour is the solid that forms when sodium thiosulfate reacts with hydrochloric acid?
What colour is the solid that forms when sodium thiosulfate reacts with hydrochloric acid?
Yellow
What happens to the solution when sulfur forms in this reaction?
What happens to the solution when sulfur forms in this reaction?
It goes cloudy
Which piece of equipment is used to measure out fixed amounts of the solutions?
Which piece of equipment is used to measure out fixed amounts of the solutions?
Measuring cylinder
How should you heat the solutions to the required temperature?
How should you heat the solutions to the required temperature?
Using a water bath
What should be drawn on the paper placed under the flask?
What should be drawn on the paper placed under the flask?
A black mark or cross
When should you stop the timer in this experiment?
When should you stop the timer in this experiment?
When you can't see the black mark
Which variable must be kept the same when testing different temperatures?
Which variable must be kept the same when testing different temperatures?
Volume of solutions
What must stay constant about both solutions throughout the experiment?
What must stay constant about both solutions throughout the experiment?
Concentration
Which variable can be changed to see how it affects the reaction speed?
Which variable can be changed to see how it affects the reaction speed?
Temperature
What happens to particles at higher temperatures?
What happens to particles at higher temperatures?
They move faster
Why does higher temperature make the reaction happen quicker?
Why does higher temperature make the reaction happen quicker?
Particles collide more often
If the black mark disappears more quickly, what does this mean?
If the black mark disappears more quickly, what does this mean?
The reaction is happening faster