When Is Mechanical Energy Not Conserved? Question 1 options:

when there is significant friction or air resistance or other force affecting on the object.

when it is cold outside

when you are in outer space

when the electricity is turned off

HURRY GIVE POINTS

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.

you need to have a picture of the atom that way we can answer it