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Chemistry, 19.10.2019 08:00 HotWheels162000
An unknown substance is heated from 10 °c to 25 °c. the table below shows the state of the substance at different temperatures.
time (minutes) temperature (degrees celsius) state of matter
0 10 liquid
2 15 liquid
4 20
6 20
8 20
10 23 gas
12 25 gas
which statement is correct about the unknown substance?
its boiling point is 20 °c.
its boiling point is 15 °c.
the substance sublimes at 15 °c.
the substance exists as a solid at 20 °c.
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An unknown substance is heated from 10 °c to 25 °c. the table below shows the state of the substance...
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