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Explain by what factor does the fraction of collisions with energy equal to or greater than the activation energy of 100 kj/mol change if the temperature increases from 19C to 59C
depending on temperature, RbCl can exist in either the rock-salt or cesium-chloride structure. What is the coordination number of the anion and cation in each of these structures?
Given the following balanced chemical equation 2CH3H6+9O2-->6CO2 +6H2O, if 15.7 mol of water are formed, how many mol of O2 reacted
consider a nonmetal atom which we will give the symbol x. the element x is a gas at room temperature and can easily
What will be the molarity of the resulting solutions made by mixing 140 mL of 3.2 M H3PO4 with 590 mL H2O?
How much heat (in kJ) is needed to convert 853 g of ice at -30.°C to steam at 131°C? (The specific heat capacities of ice, steam, and liquid are 2.03 J g-1 °C-1, 1.99 J g-1 °C-1, and 4.18 J g-1 °C-1, respectively. The heat of fusion is 6.02 kJ mol..
Calculate the separation in energy between the ground state and the first excited state in which one electron occupies the state with n=7. Calculate the frequency of the radiation required to produce a transition between these two states.
a melting point of 328.0 Celsius degrees, and a heat of fusion of 5.5 kcal/kg. How much heat must be provided to melt a 250.0 kg sample of lead with a temperature of 20.0 Celsius degrees
Write a brief discussion of the bond dipoles of iodomethane and the corresponding Grignard reagent.
Suppose if you mix 20.50mL of a 0.393 M solution of K2CrO4 with 20.50mL of a 0.393 M solution of AgNO3, explain what mass of solid will form
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 {\rm J}/{\rm g} ^\circ {\rm C} and that of steam is 1.84 {\rm J}/{\rm g} ^\circ {\rm C}. q=?kJ
The emf of a cell made of a Zn anode and hydrogen cathode immersed in 0.5M ZnCl2 is +0.590V. What is the pH of the solution. Use the Nernst Equation
The amino acid alanine is shown below in several different Fischer projections. Sort the structures according to whether the Fischer projection represents alanine with the R configuration or alanine with the S configuration.
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