Compare and contrast between combustion and rusting​

Combustion is a rapid process while rusting is a slow process. 2. Combustion releases light during the process while rusting does not produce any light. ... Combustion results in release of large amount of heat while rusting very little amount of heat evolved.

Explanation:

combustion is fast and destructive it also involves a lot of movement of the atoms where erosion is a slow process that does not involve a lot of energy

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.