How do you write the molecular and net ionic equation
How do you write the molecular & net ionic equation for thereaction that occurs when aqueous solutions of lead acetate(PB(C2H3O2)2) &calcium chloride (CaCl2) are combined?
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Calculate the magnitude of the electric field for a conducting sphere at a point 3.20 cm away from the center of the sphere.
The depth on the right hand side is 20ft. The gate is 8 ft tall and hinged at the top. In order to keep the gate closed, determine the external moment that must be imposed at the hinge.
A disk is rotating about its central axis like a merry-go-round. The angular position delta(t) of a reference line one the disk is given by delta(t)=-3.4 + 2.3t - .43t^2 with t in seconds, delta in radians and the initial angular position at zero.
Show all calculations and circle the appropriate answers. Round only final calculations and do so to the correct decimal point. Use only the CLASSICAL APPROACH and show all SIX STEPS.
If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 43.0 N·m, what minimum force must be exerted by the mechanic at the end of a 32.0 cm lug wrench to accomplish the task?
If a chemical reaction, A + B --> C + D, is endothermic, what is the sign of ΔH for the reaction? Would the temperature recorded in the calorimeter well for such a reaction increase or decrease? Explain.
Show all formulas and circle the appropriate answers. Show all six steps, use the p-value approach using the TI-83 or TI-84 calculator (except if chi-square test or correlation).
The tank contains water to a depth of 5ft plus a depth of 2.5ft of oil on top of the water. The SG of the oil is .82. Determine the magnitude and location of the resultant force on one end of the tank.
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