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Two patterns of packing different types of spheres are shown here.
For each structure (a) draw the two-dimensional unit cell,
(b) determine the angle between the lattice vectors, g, and whether the lattice vectors are the same length or of different lengths,
(c) determine the type of two-dimensional lattice.
Given that the standard enthalpy of formation of atomic hydrogen, H(g), is -219.0 kJ/mol, find the standard reaction enthalpy for the reaction H2(g) -> 2H(g) (calculate result in kJ/mol and give the numerical value)
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
Redox equation is completed and balanced for the reaction in acid solution, what is the proper coefficient for H+ ? Zn + Cr2O7 2- ----> Zn+ + Cr2+
If A container holds 355mL of a mixture of nitrogen also carbon dioxide gases. The container is found to have a little leak. Assume which gas is escaping faster
a sample of aluminum chloride increased in temperature by 3.5 k when the sample absorbed 167 j of energy. determine the
Problem- How many distinct tetrapeptides can be made from the three amino acids leucine, histidine, and valine. Each amino acid may be used more than once.
What's the purpose of acetic acid and sodium acetate in the lab bromination and debromination of cholesterol?
write a net ionic equation for the reaction of each antacid with aqueous HCl. include the state of each species. a)MgCO3 b)CaCO3 c)Mg(OH)2
a sealed balloon is filled with 1.70 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
Please suggest me with the possible answers how the coronarin D is synthesised from labdane dildehyde and also suggest me with the different agents reactions for epoxidation
you take stoichiometric amounts of 2-heptene c7h14 and oxygen in a sealed 1.500 l flask and allow them to react. the
How many liters of oxygen,O2,are required for the complete combustion of 1/2 mole of pentane,C5H12 at standard conditions
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