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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?a) Na2X2b) Na3X2c) NaXd) Na3Xe) Na2X
Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.32 mol/L. (Assume T = 25°C.)
When 284.5 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?
Which of the following correctly shows intrachain hydrogen bonding in an alpha-helix. A. -NH HN- B. -C=O HC- C. -C=O HN- D. -C=O C- E. -CH HC-
Sodium bisulfite solution is added to an experiment at the end in order to destroy the unreacted bromine. What reaction is occuring here? Is HSO3- acting as an oxidizing or reducing agent? Write a balanced equation.
Barbituric acid, HC4H3N2O3.... Its pKa is 4.01. What is the [H+] and pH of a 0.044 M solution of H-Bar
Calculate Qsp for calcium flouride (Ksp=3.9 x 10^-11) when 230.0 mL of a 0.00790 M solution of Ca(NO3)2 is added to 275.0 mL
Zinc dissolves in acid according to the balanced reaction: Zn(s) + 2H^+(aq) -> Zn^2+(aq) + H2(g) A sample of zinc is placed in the ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109mL in the ice/water volume of the calorimeter
Draw an energy level diagram for the interaction of two atom each with an s orbital. Show how the MO's would be occupied if the two atoms in question were H atoms and if they were He atoms. What conclusions are to be drawn about the formation of a..
The volumes(45.01,45.05,45.07, and 45.33)ml were used to titrate a 50ml aliquot of a sample. would you reject any values at a 90% confidence interval. how about a 95% confidence interval
the following reaction takes place in a sealed 40 l container at a temperature of 120 degrees celsius. 4nh3g 5o2g 4nog
calculate the volume in ml of a 1.22 m na2s solution needed to react with 2.75 g of albr3 molar mass 266.7 gmol in the
what is the chemical equation name and formula for the follwing?when strongly heated magnesium sulfide formed a yellow
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