Explain the molecular geometry including the bond angles
Explain the molecular geometry including the bond angles and give the expected hybridization of the central atom for Br3 and draw the Lewis Structure.
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Write down the charge and formula of a polyatomic anion that have only oxygen and carbon and has a -2 charge.
A plane electromagnetic sin wave having a frequency of 17MHz travels in the free space.
A wave consists of a wavelength of 4.9x10^-7 m and a speed of 8x0^7 m/s in a specific material. i) Find out its frequency in the material in Hz?
A small sterling silver bracelet has a volume of 7.33 ml and mass of 76.0g by water displacement. Determine the mass and %Ag and the mass and %Cu in the bracelet. Suppose the volumes to be linearly additive. Density of Cu =8.96g/ml; density of Ag
A charge of 16 C in a lightning bolt flows in a time of 1.5 x 10-3 s. Supposing that the lightning bolt can be expressed as a long, straight line of current, determine the magnitude of the magnetic field at a distance of 25 m from the bolt?
U.S. national average passenger car "fuel economy" is about 25 miles per gallon. With this change in national fuel-economy standard, find percent increase in "energy efficiency?"
Suppose you want to make 12.0 dozen cookies so you decide to make these cookies in the batches of 24.0 cookies each and each batch needs 27.0 mL of vanilla extract. Each bottle of vanilla extract have the 150 mL of liquid.
When the two slits in a doubles-slit experiment each consist of a width of .08 mm and a spacing of .24 mm, determine how many interference peaks will lay in the central diffraction maximum by using 488 nm light?
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