In your hand, the ball has higher potential energy than kinetic because it is still off of the ground but it isn't moving so there is no kinetic. As the ball rises, its potential and kinetic energy increases. At its peak, it has very high potential energy and very low kinetic energy. As it falls, the potential energy decreases but kinetic does not.
Reduction reactions are those reactions that reduce the oxidation number of a substance. Hence, the product side of the reaction must contain excess electrons. The opposite is true for oxidation reactions. When you want to determine the potential difference expressed in volts between the cathode and anode, the equation would be: E,reduction - E,oxidation.
To cancel out the electrons, the e- in the reactions must be in opposite sides. To do this, you reverse the equation with the negative E0, then replacing it with the opposite sign.
Pb(s) --> Pb2+ +2e- E0 = +0.13 V
Ag+ + e- ---> Ag E0 = +0.80 V
Adding up the E0's would yield an overall electric cell potential of +0.93 V.
Answer:
The answer will be listed below.
Explanation:
Kinetic Energy- Energy of motion, increases with mass
Potential Energy- Stored energy, increases with height
Both- Increases with velocity
Answer:
3.9%
Explanation:
Exact melting point = 123°C
Measured melting point = 128°C
% error; |measured - exact|/exact × 100
% error = |123 -128|/128 × 100
%error = 3.9%
Percentage error in temperature measurement = 3.9 %
