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A 22 kg child slides down a 2.5-m -high playground slide. She starts from rest, and her speed at the bottom is 1.0 m/s . What is the change in the thermal energy of the slide and the seat of her pants?
The ice was poured out into another container leaving a wet, empty beaker that weighed 46.146g. How much ice was poured into the other container?
A 3.00-L flask is filled with gaseous ammonia, NH3. The gas pressure measured at 27.0 C is 2.05 atm. Assuming ideal gas behavior, how many grams of ammonia are in the flask
A compound X has molecular ion peaks in its mass spectrum at mass 140 and 142, and shows prominent peaks in its IR spectrum at 3150-3000 and 1600 cm^-1.
A cubic box with sides of 20 cm is closed and sealed in Tucson where the atmospheric pressure is 90 mbar. It is driven to the top of Mount Lemmon where the pressure is reduced to 745 mbar. What is the net force on the lid of the box due to the air
Consider the following half-reactions. What is the maximum Eo of a cell constructed using two of these half-equations.
Draw the pictures of the overlap of the atomic orbitals to make all of the molecular orbitals and for any non-bonding orbitals as well.
A mother calls you to ask about a proper dosage of cough medicine for her 2 year old. The bottle says to administer 5.0 mg/kg three times a day for children under 3 years of age. The cough syrup is supplied in a liquid that contains 50.0 mg/mL. How m..
Complete and balance the equation NaCl(aq)+Hg2(C2H3O2)2(aq). Express your answer in a chemical equation.
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.15 M NH3. What is the resulting pH
Find the solubility of AgI in 2.5 M NH3 (Ksp of AgI = 8.3x10^-17 and Kf of Ag(NH3)^2+ = 1.7X10^7)
A constant current of 119.0 A is passed through an electrolytic cell having an impure copper anode, a pure copper cathode, and an aqueous CuSO4 electrolyte.
Draw the structures of the eight isomeric pentyl alcohols (C5H11OH) and name them including primary
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