What is the pH of a 2.5 X10^–6 M HClO4 solution?

Explanation:

We use the pH equation, which states that,

1 pH=−log[H+]

2 And so, the pH will be,

3 pH=−log[0.075]

4 ≈1.12.

i think it is d. e because the next one is igneous.

answer; talc and gypsum;