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Convalent bonds form when a) 2 nonmetals combine b)2 metals combine c) a metalloid bonds to a nonmetal d) a and c are true e) a, b and c are true
Use a solubility table to predict which of the following combinations of ions would produce a precipitate for the following and write complete net ionic equation for each reaction.
the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation
Calculate the nuclear binding energy of one lithium-7 atom. the measured atomic mass of lithium-7 is 6.015amu.
The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy
if 20. g or NaCl are used and only 5.6 g of HCl are isolated, what is the percent yield of HCl C.) If only 5.6 g of HCl are obtained, how many grams of Na2SO4 must also have been formed
what is the mole fraction of A in the vapor above a binary solution of A and B in which the mole fraction of A is 0.30?
What is the length of the side of the unit cell for iron and what is the atomic radius?
Which components of an acrylamide gel effects qualities of the final product, and which components affect the speed of polymerization?
The solubility of zinc oxalate is 7.9 x 10-3 (exponential 3)M at 18 degrees celsius.Calculate its Ksp. Find the pure molar solubility of BaCrO4(Ksp=2.1x10(-10 Exponentially ) in a) pure water and b) 1.5 x10(-3 exponentially) M Na2CrO4.
A buffer is prepared by mixing 453 mL of 0.143 M HCl with 983 mL of 0.848 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
What is the HCl concentration of 33.7 mL of 0.350 M NaOH is required to titrate a 30.0 mL sample of the acid?
3230 J of heat are added to a 29.7 g sample of iron at 29 degree C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g. K
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