Answer:
B
Explanation:
The sun can be dangerous but it also helps our Earth in a lot of ways
7.55 x 6.02 x 10²³ = 4.55 x 10²⁴ atoms
1 x 10^-12 mol dm^-3
[H+] = 10 ^ -pH
Therefore, pH 12 = 1 x 10^-12 hydrogen ion concentration
