Multiple Choice
Which of the following exothermic reactions is most likely to have the greatest activation energy?
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8. Thermochemistry
Endothermic & Exothermic Reactions
Multiple Choice
Which type of chemical reaction absorbs energy from its surroundings?
A
Neutralization reaction
B
Combustion reaction
C
Endothermic reaction
D
Exothermic reaction
Verified step by step guidance1
Understand the difference between endothermic and exothermic reactions: Endothermic reactions absorb energy (usually heat) from their surroundings, while exothermic reactions release energy to the surroundings.
Identify the energy flow in the reaction: If a reaction requires energy input to proceed, it is endothermic; if it releases energy, it is exothermic.
Analyze the given options: Neutralization and combustion reactions are typically exothermic because they release heat.
Recognize that the term 'Endothermic reaction' directly describes a reaction that absorbs energy from its surroundings.
Conclude that the correct answer is 'Endothermic reaction' because it matches the definition of absorbing energy.
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