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Atomic Number = 6, Protons = 6, Electrons = 6, Atomic Weight = 12.0. Electrons in first energy level = 2; second energy level = 4.
Suppose a piece of silver jewelry contains 6.53×1022 atoms of silver (Ag). How many dozens of silver atoms are in the piece of jewelry. Express your answer numerically in dozens.
Identify which process break covalent bonds and which ones simply overcome intermolecular forces? Explain why. A. Subliming iodine B. Oxidation of Mg to MgO C. Dissolving sugar in water D. Freezing pentane E. Converting CO to CO2
The physical separation of crude petroleum into fractions is based on boiling point differences among components present
What reasons can you give that paracetamol is much milder on the stomach than either asprin or ibuprofen
How many mol of O2 are required to form 3.20 mol Fe2O3 3. How much heat is exchanged when 14.3 kg of iron rusts? 4. How much rust (g) is formed when 200. kJ of heat is released
The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according to the equation 3H2+N2=2NH3
How many grams of aspirin were lost in the washing process you used to purify your product, assume you used 50 ml of water for washing. The solubility of aspirin in water is 0.33 g per 100 ml at room temp. actual yeild=2.582 g theoretical yield= 2..
What is the reaction order with respect to each reagent for the following reaction. Then write the rate law equation.
The formation constant Kf for the complex ion Zn(OH)42- is 2.8 1015. What is the concentration of zinc ion, Zn2+, in a solution that is initially 0.50 M in Zn(OH)42-
Nitrous acid, HNO2, is a weak acid that is partially dissociated (broken apart) in aqueuous solution. What is the equilibrium concentration of HNO2 if the extent of dissociation in 2.00M HNO2 is 0.58%. The equilibrium equation is shown below.
The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule.
Combustion of C12H22O11(s)(sucrose or "table sugar") produces CO2(g)and H2O(l). When 3.76 g of sucrose is combusted in a constant volume (bomb) calorimeter, 62.0 kJ of heat is liberated. Calculate ΔE for the combustion of 2.30g of sucrose.
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