Endothermic reactions (AQA GCSE Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens to energy during an endothermic reaction?
What happens to energy during an endothermic reaction?
Energy is taken in from surroundings
What happens to the temperature of the surroundings during an endothermic reaction?
What happens to the temperature of the surroundings during an endothermic reaction?
It goes down
How do the energy levels of products compare to reactants in an endothermic reaction?
How do the energy levels of products compare to reactants in an endothermic reaction?
Products have more energy
What direction does the energy profile graph go in an endothermic reaction?
What direction does the energy profile graph go in an endothermic reaction?
Upward from reactants to products
What type of endothermic reaction breaks down compounds using heat?
What type of endothermic reaction breaks down compounds using heat?
Thermal decomposition
What are the products when calcium carbonate thermally decomposes?
What are the products when calcium carbonate thermally decomposes?
and
Why do sports injury cold packs feel cold?
Why do sports injury cold packs feel cold?
The dissolving absorbs energy from skin
What happens to a container during the citric acid and sodium hydrogen carbonate reaction?
What happens to a container during the citric acid and sodium hydrogen carbonate reaction?
It gets cooler
What happens to a thermometer reading during an endothermic reaction?
What happens to a thermometer reading during an endothermic reaction?
It decreases
How does a test tube feel when an endothermic reaction occurs inside it?
How does a test tube feel when an endothermic reaction occurs inside it?
Cold to touch
Why must you keep heating calcium carbonate for thermal decomposition to continue?
Why must you keep heating calcium carbonate for thermal decomposition to continue?
You need to keep adding heat energy
In an energy profile for an endothermic reaction, where do reactants start?
In an energy profile for an endothermic reaction, where do reactants start?
At a lower energy level