Question

When water changes directly from a solid to a gas it is called sublimation. Which of the following describes this change? Select TWO correct answers. A endothermic B exothermic C energy is released D energy is absorbed and released E physical change F chemical change

Answers

Answered by GPT-4o mini
The correct answers describing the process of sublimation (when water changes directly from a solid to a gas) are:

A. endothermic
E. physical change

Sublimation is an endothermic process because it requires energy to be absorbed to break the bonds that hold the solid structure of ice together. It is also considered a physical change since it involves a change in the state of matter without altering the chemical composition of the substance.
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