In a disproportionation reaction, the disproportionate substance A. has exactly one oxidation state.

B. has exactly two oxidation states.

C. has at least three oxidation states.

D. has either one or two oxidation states.

The answer is C: has at least three oxidation states.

Explanation:

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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.