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Briefly describe the hazards associated with even small amounts of each of the following: concentrated HCI, NaOH solution, AgNO3 solution, and solid NaHSO4
Consider a glass of 254 mL of water at 25°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved.
Phosphorous pentachloride forms from phosphorus trichloride and chlorine: PCl3(g)+Cl2(g)->PCl5(g) given: ?Ssys=-170.2J/K, ?Ssurr=295.0J/K, ?Stotal=124.8J/K, reaction is spontaneous under standard-state conditions at 25
Write down the expression for the radial distribution function of a 3p electron in a hydrogenic atom and determine the radius ar which the electron is most likely to be found
a certain brand of antacid chewing gum was sent to the lab for testing and it was found to have 15 by mass of
Determine the energy change associated with these changes in state: a. 138g of steam condenses,b. 261mg of solid mercury melts,c. 8.36g of rubbing alcohol freezes d. 52g of liquid methane boils
Quantum dots are unique class of semiconductor because they are so small, ranging from 2-10 nanometers in diameter. The size of pencil lead in a mechanical pencil is 0.0197 inches.
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
Identify the sets of quantum numbers that describe all the electrons in a neutral beryllium atom, \rm Be. Each set is ordered
Why are the bond angles of methane, ammonia, and water different for each even though the electron domain geometry is the same for each
calculate the amount of heat necessary to raise the temperature of 53.4 grams of ice at -50.0 degrees celsius to water
If the first order half life is 300. seconds at 35 degrees Celsius and the initial concentration of hydrogen peroxide in a commercial Winn-Dixie product is 0.050M, then after 30 minutes, calculate the concentration of the hydrogen peroxide expecte..
How much heat is absorbed when 45.00 g of C(s) reacts in the pressence of excess SO2(g) to produce CS2(l) and CO(g) according to the following chemical equation?
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