Chemistry, 04.06.2020 21:59 mariahernandez237503
PLEASE HELP ME THE VIDEO IS CALLED PRIMITIVE TECHNOLOGY: MAKING GLASS MELTING FROM SANDY SEA'S
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Chemistry, 23.06.2019 08:00
Can anyone answer these questions? ? i need it before 1: 00pm today
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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 17:30
If 2.40 moles of gas are held at a temperature of 97.0 °c in a container with a volume of 45.0 l, what is the pressure of the gas?
Answers: 1
PLEASE HELP ME THE VIDEO IS CALLED PRIMITIVE TECHNOLOGY: MAKING GLASS MELTING FROM SANDY SEA'S
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