Chemistry, 01.10.2021 16:10 studyoverload
19. Three people measured the temperature of boiling water to be 97.9°C, 98 °C, and 97.7 °C. Find the precentage error in their measurement.
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Using the periodic table, complete the table to describe each atom. type in your answers
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When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?
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Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
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Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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19. Three people measured the temperature of boiling water to be 97.9°C, 98 °C, and
97.7 °C. Find...
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