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An increase in which of the following will occur if the reaction temperature is increased? I. Energy of activation II. Collision frequency III. Fraction of collisions with sufficient energy a. I, II, and III b. I c. II and III d. I and II e. I and III
Which of the following changes to a voltaic cell would cause an increase in potential (i.e., more positive Ecell)
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4, 0.1 M NiF2, 0.2 M Rb2CO3, 0.01 M Sr(OH)2, , 0.03 M ScBr3.
To a sample of alkaline earth metal carbonate (MCO3; 0.250 g) was added 30.0 mL HCl (0.250 mL). Carbon dioxide gas evolved out from the solution. After the reaction was completed.
What mass of C4H6 in grams is consumed in the reaction below when 36.9 grams O2 (g) are also consumed?
After 79.0 min, 35.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
The atomic mass in g mol of Fe=55.85, S=32.07 O=16, calculate the number of moles of the negative ions present in 7.45g of iron (III) sulfate.
Calculate the pH of the following solutions: 1.) 0.100 moles of HF and 0.120 moles of NaF in a 1.00 liter solution.--- 2.) a solution that has 0.10M NH4NO3 and 0.10 M NH3.--- 3.)0.100 moles of HF and 0.200 moles of NaCN in 1.00 liter solution.
What metal occurs in a vast limestone deposits and combines with oxygen to form an oxide with a formula MO ?
Draw an oxygen saturation curve for a cooperative protein that shows a p50 of 45 torr. On the same graph draw a c curve that shows a protein that is non-cooperative with p50 of 15 torr
Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced
Construct a spontaneous voltaic cell using the following materials: A Ni(s) electrode, a copper electrode, a 1.0 M Ni(NO3) (aq) solution and a 1.0 M CuSO4 (aq) solution.
If the titrant has a molarity of 0.2750 M and there are 40.00 mL of analyte present, what is the molarity of the analyte?
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