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1.How many total valence electrons should be in the Lewis structure of SO22-?
2.Draw the Lewis structure of SO22-.
3.Based on your Lewis structure, the molecular shape of SO22- is.... and polarity is...?
Which one of the following polyprotic acids is the weakest acid in terms of its first acid-ionization equilibrium constant
question a nasa satellite showed that in 2003 the ozone hole was much larger than it was in 2002. the 2003 hole
What is the present value of $1,500 due in 4 years if the interest rate is 7% compounded semi annually.
Barium hydroxide is reacted with the calcium iodide. Calculate how many mL of .30M Ba(OH)2 needed to react with 250mL of .50M CaI2 (Need to write balanced equation first).
You are titrating 150.0 mL of 0.070 M Ca2 with 0.070 M EDTA at pH 9.00. Log Kf for the Ca2 -EDTA complex is 10.65, and the fraction of free EDTA in the Y4- form, ?Y4-, is 0.041 at pH 9.00. Calculate the concentration of Ca2 at V = 1/2 Ve. Calculate..
Acquire a balanced chemical equation for oxidation of an organic compound CnHaObNc, with oxygen. Based on the balanced reactions for oxidation with oxygen or else with dichromate, compute the quantity of dichromate, in mol and in g that correspond..
A solution is made by dissolving 25.6 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes quite warm, but after it is allowed to return to room temperature, water is added to total 500 mL of solution.
A, B, C, D are all pure crystalline compounds with melting points of 110?C - 111?C. A mixture of compounds A and C melts at 110?C-111?C. A mixture of A and D melts at 95?C-105?C. Which of the following is correct
Calculate the number of chromium atoms in a 2.0 cm by 1.0 cm by 7.0 cm piece of this stainless steel. Calculate the number of 52Cr atoms in the above sample. The natural abundance of 52Cr is 83.789%.
From the following chemical equation determine how many grams of Ca(OH)2 you would need to react with 6.26 moles of HBr. How many grams of water will be made
Determine how much silver ion(Ag+) is left in solution if you mix 0.10 mole of silver nitrate AgNO3 with 0.20 mole of sodium hydroxide NaOH to make a one litre solution.
It decomposes into its elements. Write the balanced equation for this reaction. If 71.8 g of Hgo is decomposed, calculate the volume of oxygen at STP
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