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:

you're welcome

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )