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Question 1: On a potential energy diagram, what is true about activation energy?
Question 2: According to the collision theory and model created to explain the collision theory, why does a catalyst cause a reaction to speed up?
Question 3: If it requires 37.5 mL of a 0. 245 M HBr solution to neutralize 18.0 mL Mg(OH)2, what is the concentration of the Mg(OH) 2 solution?
2 HBr + Mg(OH) 2 Mg(Br)2 + 2 H2O
Question 4: Which of the following chemical reactions is an oxidation-reduction reaction?
Question 5: Heat from the Earth s core and pressure on the remains of dead plants and animals create which of the following resources?
What substance is produced at the anode during the electrolysis of a mixture of molten calcium bromide, CaBr2(l), and molten magnesium iodide,MgI2(l)
Please rank the following aromatic compounds in order of their reactivity in electrophilic aromatic substitution: anisole, nitrobenzene, acetophenone, toluene, benzene. Briefly explain your answer.
Calculate the magnitude of the current in amperes if the number of moles of hydrogen gas produced is 5.36×10-4
When X rays of wavelength 0.096 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance between the layers of atoms responsible for the diffraction.
A 31.43 ml volume of .108M NaOH is require to reach the phenolphthalein endpoint in the titration of a 4.441g sample of vinegar. Calcute the percent acetic acid in the vinegar.
At equilibrium 1.12e-02 mol of HCl is found in the reaction mixture. Calculate the equilibrium pressures of all gases in the reaction vessel and the value of KP for the reaction. Pick the correct statement from the multiple choices. Use the value ..
It is found that 6.4 x 10-4 g of Ag3AsO4 dissolves per 500 mL of aqueous solution at a given temperature. Calculate the solubility product for Ag3AsO4. Ag3AsO4 (s) 3 Ag+(aq) + AsO4-3(aq)
Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- -> Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs)?
Some of the cyclohexane solvent vaporized during the temperature versus time measurements. Will this loss of cyclohexane result in the freezing point of the solution being recorded as too high
Calculate the amount of heat liberated (in KJ) from 316g of Mercury when it cools from 74.8 celcius to 12.0 celcius.
The salts listed below are insoluble in aqueous solution. Which of these salts will dissolve in whole or in part in dilute HCl
An oil bath maintained at 50.5oC loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an electrically heated coil with a resistance of 60 operated from a 110 V line.
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