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Chlorine forms a number of oxides with the following oxidation numbers: +1,+3,+4,+6 &+7.Write formula for each of these compounds.
Draw the basic repeating unit of polyethylene terephthalate (PET). Classify PET as a polyamide or polyester. Is PET a condensation or addition polymer? Explain.
Draw the structures of propene (propylene) and tetrafluoroethene. Draw the basic repeating units when each of these compounds polymerizes. Describe some practical uses of each polymer.
A 5.81 10-5 H solenoid is constructed by wrapping 70 turns of wire around a cylinder with a cross-sectional area of 8.10 10-4 m2, Determine the change in the length of the solenoid
Classify each of the reactions in problem 4 as an oxidation-reduction, substitution, addition, or esterfication reaction. Write an equation for the synthesis of
A long, current-carrying solenoid with an air core has 1670 turns per meter of length and a radius of 0.0194 m. What is the mutual inductance of this system?
Calculate the ionic strength of a solution containing 0.010 M calcium sulfate and 0.010 M sodium chloride. Show all work.
The oil is burned with 20.0% excess air, based on complete combustion of the carbon to CO2, the hydrogen to H2O, and the sulfur to SO2. The oil is burned completely, but 8% of the carbon forms CO. C
A uniform magnetic field is at right angles to the plane of a wire loop. The field decreases by 0.16Tin 3.0×10?3s and the magnitude of the average emf induced in the loop is 82V, What is the a
spy planes fly at extremely high altitudes (25.5 km) to avoid interception. what must be the minimum aperture of the camera lens to afford this resolution
what is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 4.63m and an eyepiece whose focal length is 3.16cm
a 184x astronomical telescope is adjusted for a relaxed eye when the two lenses are 1.20 m apart. what is the focal length of the objective
Armed with highly sensitive detection equipment, you are in the front of a railroad car that is accelerating forward. Do you find the light to be red-shifted (lowered in frequency), blue-shifted (incr
A gas stream that contains 1.50 mole% CO2 flows through a pipeline. 20.0 kg/min of CO2 is injected into the line. A sample of the gas is drawn from a point in the line 10 meters downstream of the in
RNA is readily hydrolyzed by alkali, whereas DNA is not. Why. Think of pH required for nucleophile generation
Determine the number of protons and neutrons in a carbon-14 isotope and write its symbol in the form A/Z X
Calculate the speed of sound for a wave whose wavelength is 2.5 m and whose frequency is 270 Hz
An alpha particle (q = 2e and m = 6.64e-27 kg) is accelerated from rest through a potential difference of 1.2e+5 volts. Find the speed of the particle after being accelerated
On a mission to a newly discovered planet, an astronaut finds chlorine abundances of 13.85% for 35Cl and 86.15% for 37Cl . What is the atomic mass of chlorine for this location. The mass of 35Cl is
When 36.5 mL of 0.585 M H2SO4 is added to 36.5 mL of 1.17 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate pH of this reaction.
A circular loop in the plane of a paper lies in a 0.85 T magnetic field pointing into the paper. The loop's diameter changes from 20.5 cm t0 5.6 cm in 0.55 s, What is the magnitude of the average in
A straight ladder is leaning against the wall of a house. The ladder has rails 3.20 m long, joined by rungs 0.530 m long. What should be the thickness of the rock
If pure PbI2 is allowed to dissolve in water and produces 5.0 x 10^-3 M I- what value of ksp can be derived
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 14rpm in 9.8s, What force is required at the edge
A wheel 2.25 m in diameter lies in a vertical plane and rotates about its central axis with a constant angular acceleration of 3.50 rad/s2, find the angular position of the point P