How much heat is evolved when 0.1047g of zn(s) reacts
than standard enthalpy of formation of Zn2+(aq) is -153.9 kJ/mol. how much heat is evolved when 0.1047g of Zn(s) reacts with excess hydochloric acid?
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The barrel of a rifle has a length of 0.806m. A bullet leaves the muzzle of a rifle with a speed of 629 m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle does not have constant acceleration, but constant accelera
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The galvanic cell Zn (s) ¦ Zn2+(aq) ¦¦ Ni2+(aq) ¦ Ni (s) is constructed using a zinc electrode that weighs 32.68 g and is completely immersed in 325 mL. How long will it take for the cell to be completely discharged?
Assuming that atoms are spherical, calculate the fraction of space which is occupied by atoms (i.e., the packing efficiency) in a metal with a face-centered cubic unit cell.
A camel sets out to cross the desert, which is 23 km wide in the north-south direction. The camel walks at the uniform speed 2.91 km/hr along a straight line in the direction 55.9? north of East (only the camel knows why he chose that particular d
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