Answer:
Option A, The pH of the solution is 2.7 and the solution is acidic
Explanation:
As we know,
pH = - log [H3O+]
Substituting the given values, we get
pH = - log [2.1 x 10-3 M]
pH = - (-2.678)
pH = 2.678 or 2.7
The solution is acidic as pH value is less than 7
Hence, option A is correct
Answer:
I think false
Explanation:
It might be false because bacteria can be found on hard/soft surfaces, in our bodies, in the ground, and in the air.
Answer: It increases the rate of desulfurization at a constant feed rate
Explanation:
False, weathering is to wear away or change the appearance or texture of (something) by long exposure to the air.