Exothermic reactions (AQA GCSE Chemistry): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What happens to energy in an exothermic reaction?
What happens to energy in an exothermic reaction?
Energy is released to surroundings
How do the products' energy levels compare to reactants in an exothermic reaction?
How do the products' energy levels compare to reactants in an exothermic reaction?
Products have lower energy
What happens to the temperature of the surroundings during an exothermic reaction?
What happens to the temperature of the surroundings during an exothermic reaction?
Temperature increases
What happens to energy in chemical reactions?
What happens to energy in chemical reactions?
Energy moves around
Where do reactants start on an exothermic reaction profile?
Where do reactants start on an exothermic reaction profile?
At a higher energy level
What pattern does an exothermic reaction create on an energy graph?
What pattern does an exothermic reaction create on an energy graph?
Downhill pattern
What are the three main types of exothermic reactions?
What are the three main types of exothermic reactions?
Combustion, oxidation, neutralisation
What do combustion reactions always give out?
What do combustion reactions always give out?
Heat and light
What type of reaction occurs when acids and alkalis react together?
What type of reaction occurs when acids and alkalis react together?
Neutralisation
What reaction occurs in hand warmers?
What reaction occurs in hand warmers?
Iron + oxygen → iron oxide