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Two students throw identical snowballs from the same height, both snowballs having the same initial speed vo ( Fig. 4.22). Which snowball has the greater speed on striking the level ground at the bottom of the slope? Justify your answer using energy considerations.
If the reaction 2H2S(g) ↔ 2H2(g) + S2(g) is carried out at 1065°C, Kp = 0.0120. Starting from pure H2S introduced into an evacuated vessel at 1065°C.
A gas had a volume of 250 ml. Temperature rises to 45 celsius and pressure is up to 770 torrs. What is the new volume
In analyzing a general unknown containing ions from several of the cation groups, a student treated the decante from Group II with Na3Co(NO2)6 and observed that a precipitate formed.
In plating the Zn onto the nail, it required 3.0v. If you were plating Ag onto the nail, do you think that 3.0v will work? If not, should the Ecell be higher or lower. Explain.
Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K.
What is the overall mass-transfer coefficient for oxygen (O2) from the atmosphere to the river? (b)Which part of the transfer mechanism controls the overall rate
lead is found in earths crust as several different lead ores. suppose a certain rock is composed of 38.0 pbsgalena 25.0
Question- A FCC structure with an atomic radius of 2.45 A and the weight is equal to 12.6453 grams figure out the volume by the displacement method after submerging the sample in water we found that the metal displaced 7.23 mL of water.
Explain why C-H single bond stretching is observed in the functional group (higher energy) region of the IR, but the absorptions corresponding to other single bond stretching vibrations
Write the name of the enzyme used in PCR and discuss its origin and properties that make it a suitable enzymes for the amplification reaction
How much heat does your body lose when 1.8 of sweat evaporates from your skin at 25 ? (Assume that the sweat is only water.) The heat of vaporization of water at 25 is 44.0 .
What is the equilibrium concentration of N2 in water when the pressure of N2 above the solution
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