ahutchinson131 ahutchinson131

04-11-2020
Chemistry

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hello PLEASE help meet

A scientist heats an unknown substance in a closed system. The graph shows the chnage in temperature over time.

During which period is the substance changing state?

hello PLEASE help meetA scientist heats an unknown substance in a closed system The graph shows the chnage in temperature over timeDuring which period is the su class=

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makylajashae makylajashae

04-11-2020

Answer:A. Losing or Gaining Energy When most substances lose or gain energy, one of two things happens to the substance: its temperature changes or its state changes. ... when the temperature of a substance changes,the speed of the particles also changes.

Explanation:

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