Considering that scientific notation has to move the decimal over so there is only one digit in the Tens place, that is the scientific notation.
The correct answer to this question is the unique atomic number which would be B
Carbon dioxide is the main gas
The answer to this is true.
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
