Scelta multipla
Which of the following happens during an exothermic chemical change?
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8. Thermochemistry
Endothermic & Exothermic Reactions
Scelta multipla
Which term best describes a chemical reaction in which energy is absorbed from the surroundings?
A
Redox reaction
B
Endothermic reaction
C
Spontaneous reaction
D
Exothermic reaction
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Understand the meaning of energy flow in chemical reactions: when a reaction absorbs energy from the surroundings, it means energy is taken in rather than released.
Recall the definitions of key terms: an exothermic reaction releases energy, while an endothermic reaction absorbs energy.
Recognize that a redox reaction involves electron transfer but does not specifically describe energy absorption or release.
Note that a spontaneous reaction refers to whether a reaction occurs naturally without external input, not directly to energy absorption or release.
Conclude that the term describing a reaction absorbing energy from the surroundings is an \(\textbf{endothermic reaction}\).
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