What is happening at the cathodic region?
Rust has a tendency to form when iron in contact with water reacts according to the following reaction:
4 Fe + 3 O2 ? 2 Fe2O3
A) Iron is being oxidized.
B) Oxygen is being oxidized.
C) Oxygen is being reduced.
D) Iron is being reduced.
E) none of the above
Answer: C
You might also like to view...
Three cars (car F, car G, and car H) are moving with the same velocity when the driver suddenly slams on the brakes, locking the wheels. The most massive car is car F, the least massive is car H, and all three cars have identical tires
(a) Which car travels the longest distance to skid to a stop? A) Car F B) Car G C) Car H D) They all travel the same distance in stopping. (b) For which car does friction do the largest amount of work in stopping the car? A) Car F B) Car G C) Car H D) The amount of work done by friction is the same for all cars.
The driest of Earth's regions are known as
a. hot spots. b. deserts. c. wastelands. d. scablands.
Why is the conduction in a fin not able to be determined for the case where the base temperature is constant, as in Figure 2-9?
What will be an ideal response?
According to Wien's Law, a(n) ____
a. hotter object will emit more short wavelength (bluer) radiation b. hotter object will emit more long wavelength (redder) radiation c. cooler object will produce less photons d. cooler object will produce more photons e. object will produce the same number of photons at different temperatures