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A crystal consists of a building block (an atom or group of atoms) that is repeated periodically through space.(a) Describe the difference between the "crystal lattice", the arrangement of lattice points in space, and the "crystal structure", the arrangement of atoms in space.(b) Explain how every crystal lattice has a unit cell that has the shape of aparallelopiped and is "primitive" in the sense that it contains only one lattice point.(c) Given (b), why do we often choose a unit cell that contains more than one lattice point (for example, the face-centered cubic and body-centered cubic cells)?
you have a 1.0cm3 sampleof lead and a 1.0cm3 sample of glass. you drop each in a separate beaker of water. how do the
Write a procedure that would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on its rate of reaction with antacid tablets. Can only use materials listed:
zinc reacts with aqueous sulfuric acid to form hydrogen gas zns h2so4aq --gt znso4aq h2gin an experiment 201 ml of
Concentrated HCl was added to a Ca(OH)2 suspension (in water) and the precipitate dissolved. Explain this observation on the basis of a Le Chatelier's shift in the equilibrium.
A 4.22g sample of CuS was added to excess HCl, and the resulting H2S was collected over water. What volume of H2S was collected at 32 degrees celsius
A half-cell containing which of the following metals would produce the greatest emf when it is coupled with a half-cell containing aluminum metal
Write the balanced nuclear equation for the formation of 241/95 Am through beta decay
calculate the value of kc for the following reaction at 700 c. analysis atnbspequilibrium showed that there are 2.50
Calculate the partial pressure of water above the solution, in torr.The vapor pressure of pure water at 55°C is 118.0 torr. The MW of lactose is342.3 g/mol
what mass of oxygen gas measured at 238 k and 3.51 atm is required in order to release 6670 kj of heat to the
if 162 of wet is collected over water at 24 and a barometric pressure of 736 how many grams of have been consumed? the
Calculate the values for T (in K), w, delta U, and delta S. Neglect PV quantities for water and assume ideal behavior for water vapor.
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