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Question- There is a product on the market called a "Wall O' Water". It is a doubly thick cylinder made of polyethylene which is often colored green, blue, or red. This cylinder is about 1 foot in diameter and has cells that are to be filled with water. The directions say to set these out in the garden before the last frost; after about 4 days, you can plant frost sensitive plants without worrying about them freezing to death. What are the physical principles behind how they might work? (Hint: there are both thermodynamic and light absorption considerations.
Please explain above problem in step by step manner so I can easily understand it
what volume is mililiters of nitrogen n2 would have to be collected at 0.978 atm at 28.0 degrees c to have a sample
Assuming you have avaiable to you a 50.0 g sample of glass (c=0.0837 J/g C) and a 50.0 g sample of iron (c=0.0452 J/g C). Both samples start at room temperature, 24.3C. If 500. joules of heat were added to each of these samples,
A 2.63 L flask is filled with carbon monoxide at 27°c until the pressure is 6.72 ATM. Calculate the total pressure after 2.89 moles of carbon dioxide has been added to the flask.
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The student incorrectly lists the species in solution as H+, C+4, O-2. Give the correct list of species in the solution.
How many liters of N2 (at STP) form when 1.0 kg of N2H4 react with 1.0 kg of O2?
What mass in kg of NH3 must be used to produce 1.8 106 kg HNO3 by the Ostwald process, assuming 100% yield in each reaction?
What is the wavelength, in nm, associated with a 2000. kg truck traveling at a speed of 20 m/s, that is, considering the truck to be a "matter" wave
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