Chemistry, 04.10.2020 03:01 rowdycar313p0ao5k
In nature, the chlorine atom has two isotopic forms, 35Cl and 37Cl. The masses of each form are 34.96885amu (75.76%) and 36.9659amu (24.24%), respectively. The average mass of a chlorine atom is .
Answers: 3
Chemistry, 23.06.2019 11:20
The chemical composition of soil varies with depth. an article in communications in soil science and plant analysis describes chemical analyses of soil taken from a farm in western australia. fifty specimens were each taken at depths 50 and 250 cm. at a depth of 50 cm, the average no3 concentration (in mg/l) was 88.5 with a standard deviation of 49.4. at a depth of 250 cm, the average concentration was 110.6 with a standard deviation of 51.5. find a 95% confidence interval for the difference in no3 concentrations at the two depths.
Answers: 1
Chemistry, 23.06.2019 14:00
Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature.
Answers: 1
Chemistry, 23.06.2019 16:40
Which statement is true about market economies? government goals drive business decisions. people have the freedom to choose their jobs. several are market economies vist around the world
Answers: 2
In nature, the chlorine atom has two isotopic forms, 35Cl and 37Cl. The masses of each form are 34.9...
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