The lowest point in Death Valley is 85 m below sea level. Thesummit of nearby Mt. Whitney has an elevation of 4420 m.
What is the change in potential energy of anenergetic 65 kg hiker who makes it from the floor of Death Valleyto the top of Mt. Whitney?

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank