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Briefly describe each of the nine properties and discuss how things like a virus, prion, and viroid can reproduce, but are not considered to be alive. Address the question: how can things like these that are not considered to be alive "evolve"?
Problem- The heat combustion for ethane C2H6 is 47.8kJ/g How much heat is produced if 6.0 moles of ethane undergo complete combustion
a benzoic acid solution was prepared by adding 0.488 g benzoicacid to a 100 ml volumetric flask and then adding enough
A certain reaction has Delta H= -19.5 kJ and delta S= +42.7kJ. Caculate Delta G for the reaction at 25 degrees C. Is the reaction spontaneous at 25C
According to the VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n) A. Octahedral Geometry B. Linear Geometry C. Tetrahedral Geometry D. Trigonal Planar Geometry E. Trigonal Bipyramidal..
Why, in a primitive cubic cell, do anions sit on the lattice points while the cation fills the lattice hole in the center a. Because it is favorable for anions to be as close to one another as possible.
Boron has two stable isotopes 10B (mass = 10.012938) and 11B (mass = 11.009305). If the atomic weight of Boron is 10.811 Explain what are the isotopic abundances of each isotope
1.determine the density of the object in gcm3 if an object weighing 1.840 kg has volume of 0.0015m3?2.a man wants to
calculate the concentration of hydronium ions h3o from the measured ph values. express the answer in two significant
Calculate the weight of helium in pounds to fill a ballon whose capacity is 1.0 X10^6 ft^3 at 1 atm pressure and 27 C.
A compound has an empirical formula of CH2Br and vapor density of 6.00 g/L at 375K and .983 atm. Determine molar mass of compound
Americium-241 is widely used in smoke detectors. The radiation released by this element ionizes particles that are then detected by a charged-particle collector. The half-life of 241Am is 432.2 years, and it decays by emitting alpha particles
A mixture of CO, CO2 and O2 is contained within a 275 mL ?ask at 0?C. If the total pressure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr.
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