Answer:
Hydrogen concentration = 7.94×10^-3 M
Explanation:
from potenz Hydrogen ( pH ) definition
pH = -log[H+]
2.1 = -log[H+]
2.1/-log = -log[H+]/-log
10^-2.1 = [H+]
[H+] = 7.94×10^-3M
The textbook Would most likely have more gravitational potential energy because it is heavier. Things that are heavier have a larger gravitational pull and are pulled to the earth faster
Mechanical I believe because this are things that move and don’t move so that would mean that it would be mechanical since mechanical means movement
Absorption spectrum is a type of spectrum in electron absorbs energy from a source to go from lower energy level to higher energy level.
- Material's absorption spectrum shows the fraction of incident electromagnetic radiation absorbed by the material over a range of frequencies.
- An absorption spectrum is, in a sense, the opposite of an emission spectrum.
Explanation:
<h3>Hope it helps you!!</h3>
