Hi there! The frequency of a wave is the amount of cycles (or waves) that occur in the given time. So, the answer is D. Normally, the time given is one second, so the frequency unit is Hertz (Hz) most of the time.
Here are some other definitions:
wavelength- the distance from one crest to crest or trough to trough
I hope this helps you! :))
The reaction is at equilibrium at 1,000 K. The equilibrium constant of the reaction is 3.90. At equilibrium, the concentrations are as follows.
[CO] = 0.30 M
[H2] = 0.10 M
[H2O] = 0.020 M
What is the equilibrium concentration of CH4 expressed in scientific notation?
answer is b
Answer: The concentration of hydrogen ions for this solution is .
Explanation:
Given: pOH = 11.30
The relation between pH and pOH is as follows.
pH + pOH = 14
pH + 11.30 = 14
pH = 14 - 11.30
= 2.7
Also, pH is the negative logarithm of concentration of hydrogen ions.
Substitute the values into above formula as follows.
Thus, we can conclude that the concentration of hydrogen ions for this solution is .
Examples of good electrical conductors are copper, silver, gold and aluminum