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If Beryllium oxide crystallizes in the zinc blend structure. (a) Approximate the density of this compound. (b) What is the % ion character? (c) Explain what is anticipated coordination number for the material? Is this reliable with the actual structure?
Describe the bonding in N3- (Azide ion) in terms of an molecular orbital picture in which each terminal N atom is sp hybridized with one hybrid orbital accommodating one lone pair of electrons
While a 0.579g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 3389 J/degrees Celsius, the temperature rises by 6.40 degrees Celsius. Explain how much energy (in kilojoules) is released during c..
what is the partial pressure of argon? If the two flasksare connected through a stopcock and the stopcock is opened, whatis the total pressure?
While a 1.00 L flask containing 1.500 atm of gas A is joined with a 1.00 L flask containing 0.750 atm of gas B, as well as the stopcock between the flasks is opened, also the gases are allowed to mix thoroughly, the following reaction proceeds at ..
If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein, calculate the kilocalories that each slice of cake contains.
Calculate the kg/h of wet cake feed needed to produce 1000 kg/h of "dry" ?sh cake product.
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 39°C
about two centuries ago benjamin franklin showed that 1 teaspoon of oil would cover about 0.5 acre of still water. if
You use 25 mL of 6.0 M NaOH to neutralize 50 mL of an unknown acid in a titration experiment. What is the molarity of the acid
If 5.00 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
A current of 4.85 A is passed through a Cu(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 7.60 g of copper?
A solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate?
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