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Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2.
What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?
For an ensemble consisting of a mole of particles having two energy levels separated by 1000. cm-1, at what temperature will the internal energy equal 2.90kJ?
Change in heat content We write H = Hfinal - Hinitial or for chemical reactions H = Hproducts - Hreactants Given this equation, What sign is H for exothermic reactions? What sign is H for endothermic reactions?
Consider the following reaction. Hydroquinone is the oxidizing agent. Hydroquinone Benzoquinone 2(ag)^+ 2OH^- ---> +2(ag) + 2H2O
The NH3 molecule is polar. Explain how does this offer experimental proof that the molecule cannot be planar
describe the hybrid orbitals used by the central atom in o3.and also determines what is the number of sigma and pi
what is the maximum mass of maltitol (C12H24O11) you can add to 2.00 kg of pure water and still have the solution freeze? Assume that maltitol is a molecular solid and does not ionize when it dissolves in water.
What prefix is used to name a hydrocarbon with two carbon atoms?
Write a balanced equation for the neutralization of each of the following: a)H3PO4(aq) and NaOH(aq) b)HI(aq) and LiOH(aq) c)HNO3(aq) and Ca(OH)2(s)
What is the value of x in the formula for the hydrate? hint: remember that x represents the ratio of moles of H2O to moles of hydrate compound, and that moles of hydrate
A 250 mL sample of 0.100M sodium acetate is mixed with 5.00 mL of a 2.10M HCl solution. Calculate the pH of the resulting buffer.
Calculate the pH of 0.3 mol/L of CaCl2 solution? the answer is supposed to be 7
What volume of reduced soy sauce (575 mg Na/15 mL) would be predicted to require 25.00 mL of 1.0 M AgNO3 for titration assuming all the sodium is derived from NaCl? A.W. Na= 23
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