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Consider the fact that today, the Perihelion of Earth's orbit around the sun occurs in the Northern Hemisphere winter. In 10,500 years, the Perihelion will occur during the Northern Hemisphere summer.
1. Explain how the Northern Hemisphere winter temperatures and summer temperatures would each change in 10,500 years, just due to precession. Be sure to justify your answer.
2. How would this affect the presence of Northern Hemisphere glaciers (grow, decay, or stay constant)? Explain why.
You have four related molecules, XA (mw =140), XB (mw = 100), XC (mw = 80) and XD (mw = 120). None of the four can hydrogen bond.
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What is the name and the geometric isomers structure of cis and trans of this coordination compound NH4[Pt(NH3)4Cl2]
Explain if the equilibrium would be shifted by adding a noble gas and increasing the total pressure.
A 280ml flask contains pure helium at a pressure of 754 torr . A second flask with a volume of 475ml contains pure argon at a pressure of 732 torr . If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial..
What is the root mean square velocity of the F2 molecule at 320 K?
The total molarity of acid and conjugate base in this buffer is .100 M. A student adds 7.10 mL of a .250 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760
A 25.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 and required 8.3 mL to reach the end-point. What is the chemical oxygen demand, in milligrams of O2 per liter, of the sample?
n2go2glt-gt2nog kc 1.7x10-3calculate the equilibrium concentrations if the initial concentrations are 2.31 m n2 and
What is the value of the equilibrium constant for the cell reaction below at 25°C? E°cell = 0.30 V
What is the expected vapor pressure when 58.9 g of hexane (C6H14) is mixed with 44.0 g of benzene (C6H6) at 60.0 °C? Vapor pressure of pure hexane at 60 °C is 573 torr.
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