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When 2.9 moles of reactant and 0.31 moles of each product are placed in a 15.0 L glass flask at 600 K, in which direction will this reaction proceed?        CO (g) + 3 H2 (g)    CH4 (g) + H2O (g)            Kc = 0.22 You must show work supporting your answer on your pdf upload to get full credit on this problem. A. Write the reaction quotient expression in your work that will be uploaded. B. The reaction quotient value is [Q]. Use correct sig figs. C. This reaction will run [dir] (type left, right or neither)

Choose the correct option that will make the statement True, based on the periodic trends that we have learned in class: In terms of acid strength, H2SeO3 is [one] than H2TeO3. In terms of pKa, the value for HIO3 is [three] than  H2TeO3. In terms of pH, the value for 0.1 M PH3 is [four] than 0.1 M AsH3. In terms of Ka, the value for HBr is [five] than 0.1 M H2Se In terms of base strength,  AsO33- is [two] than AsO43-.

At a [z]0.0˚C, Kp = [x]0[y] for the decomposition reaction shown.      NH4(NH2CO2) (s) 2 NH3 (g) + CO2 (g) What is the value of Kc?

Acid Base Properties of Salts. Choose: Acidic, Neutral, or Basic for each SALT:   BaF2 The Cation is           [cation1] The Anion is            [anion1] Overall the salt is [overall1]  

Please write out the following statement, with your name where the blank is to indicate that you followed the rules set out for this exam. “I, _____________, completed this exam alone and without the use of any text, or internet resources. I will not share my answers or discuss this with other students until after grades for this exam are posted. My answers are in my own words.”

B. What is the pOH of a [x].[y]3 x 10-[z] M solution of Sr(OH)2? Make sure your sig figs are correct! Don’t round until the end. Use decimal form for your answers. Do not include units. Show your work in the file you upload. pH = ?  

In the space provided, type in the correct NET IONIC equations for the following. Include physical states and the appropriate single –> or double arrow . Use the format buttons T2 and T2 or format menu to do sub and superscripts. Do not use generic abbreviations – show the conjugate formulas. Mandalorium is a madeup element with symbol Ma. Yodaine is another madeup element with symbol Yd.  A. The equilibrium reaction of the molecular base yodaline, C4H9YdH2 in water. B. The equilibrium reaction of the monoprotic weak acid, mandaloric acid, HMa2O3 in water. C. The acid base reaction of yodaline with mandaloric acid. On part C, draw tie lines connecting your conjugate pairs. Label which is the conjugate acid and which is the conjugate base.

Use the zero-factor property to solve the equation.2×2 – 10x + 8 = 0

Solve the system by substitution. Find x. If the system is inconsistent or has dependent equations, say so.x = -17 – 3y-4x + 2y = -2

Solve the system by elimination. Find y. If the system is inconsistent or has dependent equations, say so. x – 4y = -4-4x – 3y = -3