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Vector A? is in the direction 44.0° clockwise from the -y-axis. The x-component of A? is Ax = -20.0 m.
What is the y-component of A??
What is the magnitude of A? ?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable ?rst approximation.) The combustion of carbon is described by the equation
The ksp of BaCO3 is 2.58 times 10-9. Calculate the solubility of this compound in g/L.1
When 0.694 L of Ar at 1.20 atm and 227°C is mixed with 0.262 L of O2 at 501 torr and 127°C in a 400. mL flask at 27°C, what is the pressure in the flask?
Find the concentration and pH solution - What is the pH of a solution of 0.65 M acid and 0.51 M of its conjugate base if the pKa = 5.30?
balanced chemical equation for the reaction of aluminum with aqueous copper(II) sulfate producing copper metal and aluminum sulfate
You have 32.4 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.
The combustion of sodium has a change in heat for the balanced reaction of -832 KJ. Do you need a balance reaction to answer this question: If .75 moles of sodium is combusted in a bomb calorimeter, how much heat in joules is given off
The nitration of toluene gives o- and p-nitrotoluene as the major products. Please explain this observation, using structures (rather than words) as much as possible.
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 4.4 grams of silver plating.
55 gallon drum weighs 75.0 lb. when empty. what will it weigh when it is filled with ethanol which has a density of
a furniture factory needs 31.5 ft2 of fabric to upholster on a chair. its dutch supplier sends the fabric in bolts of
in the resonance form caused by the delocalization of the immediately adjacent Nitrogen's lone pairs, there is a pi bond.
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