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A hockey player makes a slap shot, exerting a constant force of 30 newtons on the puck for 0.16 seconds. What is the impulse imparted to the hockey puck?
Which is lower in energy in this reaction: a mixture of hydrogen and oxygen gases or water? how do you know that this is true? Explain and sketch an energy level diagram for this reaction to help support the answer.
if clean magnesium metal burned in air it would form magnesium oxide. suppose the magnesium had a this oxide coating.
The united states FDA requires that any product called vinegar contains at least 4% by weight of acetic acid. assuming that the density of vinegar is the same as water
a feed mixture of ethanol and water is 40 mole $ ethanol. the feed is at 200 degrees C and is at a high enough pressure that it is a liquid. It is input into the column through a valve, where it flashes. Column pressure is 1 kg/cm^2. Find the slop..
Perform the following pressure conversion, assuming when necessary that atmospheric pressure is 1 atm. Unless otherwise stated, the given pressures are absolute.
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
find the contour length (chain length) for a fully extended polythylene molecule that has a degree of polymerization of (n=45000),given that the length of c-c bond is 1.54 Ao.
Why do dehydration reactions use acid as catalyst? Why can you not use base for dehydration reactions?
reasonable efficiency for converting chemical energy to electrical energy via combustion is 30. calculate how many
If 4.0 g of CuSO4 are dissolved in 7.5 x 10^2 mL of .30 M NH3, what are the concentrations of Cu^2+. What are the concentrations of Cu^2+
A solution is made by mixing 15.5 g of NaOH and 73.0 mL of 0.150 M HNO3. Calculate the concentration of OH- ion remaining in solution.
Tungsten (W) metal, which is used to make incandescent bulb filaments is produced by the reaction
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