Bond energies (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What happens to bonds in every chemical reaction?
What happens to bonds in every chemical reaction?
Bonds break and new bonds form
In endothermic reactions, how does breaking energy compare to forming energy?
In endothermic reactions, how does breaking energy compare to forming energy?
Breaking energy is greater
What is the sign of the overall energy change in an endothermic reaction?
What is the sign of the overall energy change in an endothermic reaction?
Positive
How do the surroundings feel during an endothermic reaction?
How do the surroundings feel during an endothermic reaction?
Cooler
In exothermic reactions, how does forming energy compare to breaking energy?
In exothermic reactions, how does forming energy compare to breaking energy?
Forming energy is greater
What is the sign of the overall energy change in an exothermic reaction?
What is the sign of the overall energy change in an exothermic reaction?
Negative
How do the surroundings feel during an exothermic reaction?
How do the surroundings feel during an exothermic reaction?
Warmer
What is the sign of energy when breaking bonds in reactants?
What is the sign of energy when breaking bonds in reactants?
Positive
What is the sign of energy when forming bonds in products?
What is the sign of energy when forming bonds in products?
Negative
If overall energy change is kJ, what type of reaction is it?
If overall energy change is kJ, what type of reaction is it?
Endothermic
If overall energy change is kJ, what type of reaction is it?
If overall energy change is kJ, what type of reaction is it?
Exothermic
Breaking bonds needs kJ, forming releases kJ. What is the overall energy change?
Breaking bonds needs kJ, forming releases kJ. What is the overall energy change?
kJ
A reaction has energy change of kJ kJ kJ. What type is it?
A reaction has energy change of kJ kJ kJ. What type is it?
Exothermic