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Given the subsequent data for the length of a side of the unit cell for compounds that crystallize in the rock salt structure, find out the cation radii: MgSe (545pm), CaSe (591 pm), SrSe(623pm), BaSe (662 pm). It is known that the Se2-ions are in contact in MgSe.
Why are the products attached to C3 of 1,4 pentadiene more acidic than the methyl hydrogen atoms of propene? Maybe you can help me with this one. Are the C3 atoms more acidic because there is more s character involved with the atoms and as the s ch..
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How much of the water (in mL) contains 150 mg of Pb. The density of the solution is 1.0 g/mL.
What are all the 8 possible products from the aldol reaction between butanal and 3-phenylpropanal
Predict whether the entropy of the following reactions will be increasing or decreasing. a. Solid sugar is added to water to form a solution. b. Iodine vapor condenses on a cold surface to form crystals.
A hot air balloon is filled to a volume of 44.5 L at 758 torr. What will be the volume of the balloon if the pressure decreases to 748 torr under constant temperature?
Calculate the molarity of sodium ions in a solution made by diluting 50.0 mL of 0.874 M sodium sulfide solution to a total volume of 250.0 mL
Electrolysis of molten NaCl in a Downs cell is the major isolation step in the production of sodium metal. If 65.0 g of Na are obtained, how many amps are required to produce this in 7.50 hours
When copper(II) sulfate pentahydrate is heated, it decomposes to the dehydrated form the waters of hydration are released from the solid crystal and form water vapor. The hydrated form is medium blue, and the dehydrated solid is light blue.
how much energy in j is required to excite a hydrogen atom from its ground state to its first excited state? what is
two 1.00g masses are attached by a spring with force constant k 500 kg s-2. calculate the zero point energy of the
Methane (CH4), ammonia (NH3), and water (H2O) all have octets around the central atom, yet they have different shapes and bond angles
Elemental "white" phosphorus exists in nature as P4 molecules, in which all the P atoms have identical bonding. (a) Draw a Lewis Structure that represents this molecule.
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