Describe the sign convention
Describe the sign convention that is used when you do thermochemical calculations
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An artillery shell is fired with an initial velocity of 300 m/s at 50.0° above the horizontal. To clear an avalanche, it explodes on a mountainside 49.5 s after firing. What are the x and y components of the shell where it explodes, relative t
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An NaOH}(aq) solution cannot be made up to an exact concentration simply by weighing out the required mass of NaOH, because the NaOH is not pure. Also, water vapor condenses on the solid as it is being weighed. The solution must be standardized by
What is the maximum speed with which a 1120 kg car can round a turn of radius 80 m on a flat road if the coefficient of static friction between tires and road is 0.80?
Calculate the freezing point of a soution made by dissolving 3.50g of potassium chloride (M = 74.55 g/mol) in 100.0 g of water. Assume ideal behavior for the solution; Kf = 1.86 degrees C/m.
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A box is sliding up an incline that makes an angle of 17.0° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline
An air bubble accidentally enters the co2 collection graduated cylinder after the completion of the reaction. How does this error affect the reported moles of CO2(g) collected?
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