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a) Research the space elevator concept. Consider the environment in which the cable must operate. Recommend two physical, and one chemical property that the cable should have. Justify your choices.
b) Based on what you have learned about bonding and forces in solids, which type of solid, in your opinion, is the most suitable for use in the space elevator cable?Justify your choice.
The rate constant (k) for a reaction was measured as a function of temperature. a plot of ln k versus 1/T is line and has a slope of -7445K. Calculate the activation energy for the reaction
Explain the volume of a gas is 6.10 L measured at 1.00 atm. Define what is the pressure of the gas in mmHg if the volume is changed to 9.59 L. The temperature remains constant.
What are the potential advantages of a multienzyme complex compared to individual, non-complexed enzymes carrying out the same function
what is the hybridization state of the bridgehead carbons in [1.1.1] bicyclopentane (C5H8) and [1.1.1.0] tricyclopentane (C5H6)
potassium chloratedecomposed when heated to produce potassium chloried and oxygen gas. if 2.50 grams od kclo3 were
The density of the metal is 8.526 g/cm3 and the specific heat of the metal is 0.429 J / g oC. If the metal foil absorbs 785.2 J of heat as its temperature changes from 21.64 oC to 33.45 oC, calculate the thickness of the metal foil in mm
A tank with a flat bottom of area A and vertical sides is filled to a depth h with water. The top of the water is at atmospheric pressure. (a) What is the absolute pressure at the bottom of the tank. (b) How high could a faucet be placed before no..
Water is added to 25.0 mL of a 0.776 M KNO3 solution until the volume of the solution is exactly 500 mL. What is the concentration of the final solution.
When an aqueous solution that is 1M each in HCl, ZnCl2, and CoBr2 is electrolyzed, the elemental products formed initially at the cathode and anode are, respectively
An auto mechanic spills 87 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.6 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid.
For a certain reaction, = 8.38×10?4 and 9.24×10?5 . Calculate the value of the reverse rate constant, , given that the reverse reaction is of the same molecularity as the forward reaction.
What weight of sodium carbonate (Na2CO3) and sodium bicarbonate (NaHCO3) are required to make 500 mL of 0.2 M buffer, pH 10.70 (pK1 of H2CO3 is 6.10; pK2 = 10.30)
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