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Which statement best describes the polarity of CF2Br2? The molecule is always nonpolar The molecule is always polar Depending on the arrangement of outer atoms, this molecule can be polar or non polar
Carbon's 2s and 2p orbitals are hybridized, resulting in three hybrid sp2 orbitals and one (non-hybridized) pz orbital. Each new orbital has one lone electron assigned to it.
Write structures for all the structural isomers of double-bonded compounds with the molecular formula C5H10. Of the compounds
In an exothermic reaction, which rate increases more when the temperature is raised, the forward or reverse reaction
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams of naphthalene.
Oxygen and sulfur combine to form a variety of different sulfur oxides. some are stable molecules and some, including S2O2 and S2O3
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Use the Boltzmann equation to calculate the excited-state and ground-state population ratios for HCl: N(v=1)/N(v=0). The fundamental vibrational frequency of HCl occurs at 2885 cm-1.
A rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed v=3.00 m/s. A resistor R=0.400Ω is connected to the rails at points a and b, directly opposite from each other.
Hydrogen (H2(g)), 100.L at 380.mm Hg reacts at 150°C in a 110.L container with oxygen O2(g) (10.0L at 3.00 atm) to give water (H2O(g)). (a) How many moles of H2O(g) much water is formed? and (b) What are the total pressure and the partial pressure..
An FM station broadcasts classical music at 89.1 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and A) of these radio waves. m nm A
Suppose an integral membrane protein diffuses in a cell membrane at a rate of 1.04 square centimeters per 0.09 seconds. Express this rate as an integer with the correct number of significant figures.
What is the specific heat of a substance that it takes 192 Joules to raise the temperature of 45 grams by 6 degrees Celsius
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