When we have Kw = 1.2x10^-15
and according to Kw formula:
Kw = [OH-] [H+]
by substitution:
1.2x10^-15 = [OH-][H+]
when the solution is neutral that means:
[OH-] = [H+]
∴1.2X10^-15 = X^2
∴X = 3.46 x 10^-8
∴[OH-] = [H+] = 3.46x10^-8
Control is something that remains the same or constant through an experiment. And an experiment group is the group you test the one change on. (Also called the dependent variable)
The general term that we could label to the description is a mixture. A mixture is composed of different pure substances. If we want to be specific, we could classify it as homogeneous or heterogeneous mixture. Since the ingredients are not all soluble with each other, this is a <em>heterogeneous mixture</em>.
Answer:
Scientists don't actually measure astronomical distances in light years. Rather, they measure them in a unit called the Parsec , and only convert to light years when they're talking to the general public . One light-year is the distance light travels through space in one year.
Explanation:
Pluto isn't really close to the sun but from my prior perspective I don't really remember