Chemistry, 12.10.2019 18:30 kelechikamalu1
As a person coughs the co^2 exits the lungs at speed of about 30m/s, what is the ke?
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Chemistry, 23.06.2019 01:00
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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As a person coughs the co^2 exits the lungs at speed of about 30m/s, what is the ke?...
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