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Ice has the strange property of a melting point that is lowered by increasing pressure. If this is the reason we can skate on ice would a 75-kg skater whose skates contact the ice with an area of 0.1cm2 be able to skate at -3C?
The major product of the acid-catalyzed dehydration of heopentyl(2,2-dimethyl-1-propanol) has a different carbon skeleton than that of the starting alcohol
potassium hydrohen phthalate khc8h4o4 functions as monoprotic acid. if a 1.46 g sample of impure khc8h4o4 requires 34.3
Which of the following pairs has about the same atomic radius?
What is the chemical formula for the compound formed between calcium and chlorine. What is the chemical formula for the compound formed between calcium and oxygen
State a balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous iron(II)chloride to form solid iron(II) hydroxide and aqueous potassium chloride.
Suppose the ionization enthalpy of sodium metal is quite low at 495 kJ/mol. Explain what is the longest wavelength of light in nanometers, nm that will produce the photoelectric effect with sodium i.e. to eject electrons from sodium.
When light of frequency 6.88×1015 s-1 shines on the surface of a metal, electrons are ejected with a maximum kinetic energy of 3.40×10-19 J. Calculate the wavelength of this light.
solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. Write a balanced chemical equation for this reaction.
if 352 g of magnesium reacts with excess oxygen to produce 296 g of magnesium oxide what is the percent yield for the
While a 9.38 gram sample of magnesium is burned, it produces sufficient heat to raise the temperature of 1737 grams of water from 24.00 degrees of Celsius to 33.10 degrees Celsius. Define how much heat did the magnesium release when it burned
determine the ph of 0.25 m hno2 nitrous acid solution it is given that ka4.5 x 10-4?determine the molecular formula of
at constant volume, the initial pressure of a substance is 0.63 atm and the initial temperature is 283 k.calculate the pressure of the substance at 295 k.
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