Down...
and if you were wondering, the earth pushes back
Answer:
1 x 10^-12 mol dm^-3
Explanation:
[H+] = 10 ^ -pH
Therefore, pH 12 = 1 x 10^-12 hydrogen ion concentration
You kind of need to show more, but the independent variable would be something that you are changing to then measure the reaction, like the time left in for example.
Density is the measure of a mass per unit volume of a material substance
density= Mass/volume
The unit of density is g/cm^3
The answer is +1! Have a great day!
