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- 1. Multiple ChoiceIn an exothermic reaction, heat is ...taken ingiven out
- 2. Multiple ChoiceIn an endothermic reaction, heat is ,,,taken ingiven out
- 3. Multiple ChoiceWhen iron nails get rusty, heat is released. What process is this?ExothermicEndothermic
- 4. Multiple ChoiceIn an endothermic reaction the system is releasing energy.TrueFalse
- 5. Multiple ChoiceIs the combustion of gasoline endothermic or exothermic?EndothermicExothermic
- 6. Multiple ChoiceDuring an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.WarmCold
- 7. Multiple ChoiceIs photosynthesis an exothermic or endothermic reaction?EndothermicExothermic
- 8. Multiple Choice
Is respiration an Endothermic or an Exothermic reaction?EndothermicExothermic - 9. Multiple ChoiceA student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?The temperature changedIt is an endothermic reactionIt is an exothermic reactionTwo of the answers are correct
- 10. Multiple ChoiceWhat happens to the bonds when 2 substances reactThey break so new bonds can formNothing the bonds are too strongThey change colour
- 11. Multiple ChoiceIf they energy required to break the bonds is greater than the energy given out by making new bonds the reaction isExothermicEndothermicNeutralisation
- 12. Multiple ChoiceIf they energy required to break the bonds is less than the energy given out by making new bonds the reaction isExothermicEndothermicNeutralisation
- 13. Multiple ChoiceBaking bread and cooking an egg are examples of....?Endothermic processesExothermic processessNone of these
- 14. Multiple ChoiceIs photosenthysis an Exothermic or an Endothermic reaction?EndothermicExothermic
- 15. Multiple ChoiceWhat type of reaction is shown in the photo?ExothermicIsothermicEndothermicNone of the above
- 16. Multiple ChoiceHave you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?It is an exothermic reactionIt is an endothermic reactionIt is made of iceIt is dissolving your mouth
- 17. Multiple Choice
What type of reaction occurs in a hand warmer?
exothermic
endothermic
- 18. Multiple Choice
What is an example of exothermic?
firework
ice pack
coal
wood
- 19. Multiple Choice
Which of the following process is exothermic?
Candle was melting
A puddle evaporating
Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide
Water freezing to form ice
- 20. Multiple ChoiceWhen you freeze water, it turns to ice. What kind of change is this?PhysicalChemical
- 21. Multiple ChoiceEvaporation is what kind of change?EndothermicExothermic
- 22. Multiple Choice
During an exothermic reaction, heat is _________ and chemical bonds __________.
released, formed
absorbed, broken
released, broken
absorbed, formed
- 23. Multiple ChoiceMeltingexothermicendothermic
- 24. Multiple Choice
For exothermic reactions, ∆H is
greater than 0.
equal to 0.
smaller than 0.
- 25. Multiple Choice
For endothermic reactions, ∆H is
greater than 0.
equal to 0.
smaller than 0.
- Answer choicesTagsAnswer choicesTags