Answer:
7.28
Explanation:
-log(5.2x10^-8) = 7.28
- Hope that helped! Please let me know if you need further explanation.
Answer:Na2S04 + HCl gives
NaCl + H2So4
Explanation:
Displacement reaction
Answer:

Explanation:
The relation between frequency and wavelength is shown below as:

c is the speed of light having value 
Given, Frequency = 1290 kHz =
(As 1 kHz = 1000 Hz )
Thus, Wavelength is:


