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Use principles recognized to arrange the following atoms in order of decreasing value of the first ionization energy: Sr Cs S F As
Draw a mechanism for the dehydration of cyclohexanol catalyzed by phosphoric acid.
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
A 4.20 g nugget of pure gold absorbed 290 J of heat. What was the final temperature of the gold if the initial temperature was 25.0°C? The specific heat of gold is 0.129 J/(g·°C).
A 0.456 gram sample of an unknown monoprotic acid (let's call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
How many quartz of ethylene glycol, C2H6O2 (density = 1.116 g/mL). Will have to be added to 5 gal of water (density = 1 g/mL) to protect an automobile radiator down to a temperature of-10 oF?
Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was banned in 1996. However, there are about 100 million auto air conditioners that still use CFC-12 (CF2Cl2). These air conditioners are recharged fr..
Draw lewis Dot structures. Use model kits, styrofoam balls and/or gum drops to make a model of the molecule or ion. Be sure to place electron groups (toothpicks or sticks) as far apart as possible.
What must the oxygen content (in percent by volume) be when the total pressure exerted on the diver is 4.0 atm?
State which of the following orbitals cannot exist according to the quantum theory 2s,2d,3p 4f and 5s
when cyclopentane is exposed to Br2 in presence of light. Write the formulas of all possible dibromination products. Draw molecule by placing atoms on grid.
a sample of naphthalene which should be pure white was found to have a grayish color after the usual purification
Determined that doubling the initial concentration of X while holding the concentration of Y constant, doubled the rate, but doubling the initial concentration of Y while holding the concentration of X constant quadrupled the rate. what is the ove..
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