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Which element, indicated by letter on the periodic table above, has a 2+ ion with the electron configuration [Ar]3d10?
A particular application calls for N2 (g) with a density of 1.80 g/L at 32°C. What must be the pressure of N2 (g) in millimeters in mercury? What is the molar volume under these conditions
The filter is heated to 550 oC, and the filter plus residual then weighs 37.0 g. Another 10.0 L sample of the same water is evaporated, without filtering, yielding a residual mass of 40.0 g.
write equations that show a plausible reaction mechanism for the light-catalyzed isomerization of methyl maleate
The weathering of pyrite (FeS2) in coal mines and in metal sulfide ore deposits can be represented by the following reaction
Write an equation for the reaction of semicarbazide with acetophenone to form a semicarbonazone. What is the melting point of this derivative?
A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater Lake (in Oregon) gave 7.0 disintegrations of carbon-14 nuclei per minute per gram of total carbon.
Describe the movement of gas particles. Compare the shape and volume of a solid and a gas. Gases are easily compressed. What danger is associated with this property of gases.
In a separate experiment, 41.6 g of ClF3 was introduced into an empty 2.00 L container at 700.0 K . What are the concentrations of ClF3, ClF, and F2 when the mixture reaches equilibrium
what is the minimum amount of KCN (in g) needed to react with 15.6 g of gold?
Which of the following has the smallest mass? a. 3.50 x 1023 molecules of I2
how would you prepare 2.500 liters of 1.500 M nitric acid from a stock solution of concentrated (16.05 M)
Calculate the predicted change in boiling point, in °C for your solution. What is the calculated boiling point of the solution? Compare this with the actual boiling point.
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