What element is being reduced in the following redox reaction? C 5H 12O 2( aq) + NaMnO 4( aq) → C 5H 6O 4Na 2( aq) + MnO 2( aq)
C
Na
O
Mn
H

Which of the following processes shows a decrease in entropy of the system?
2 CO(g) + O2(g) → 2 CO2(g)
COCl2(g) → CO(g) + Cl2(g)
CH3OH(l) → CO(g) + 2 H2(g)
NaClO3(s) → Na+(aq) + ClO3-(aq)
None of these will show a decrease in entropy.

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation:

35. a insulated cylinder of solid gold (k 310 kw/m-k) of radius v2 m and height 5 m is heated at one end until the temperature at each point in the cylinder is given by w(r, y, z) (30 z2)(2-(r2+ y2). determine the rate of heat flow across each horizontal disk given by z 1, z 2, and z 3, identifying which has the greatest rate of heat flow across it.

explanation: