Answer:
A. I and V
Explanation:
According to Le Chatelier's Principle, increasing the product side will cause the equilibrium to shift back towards the reactant side, so I is true. By the same principle, II is false.
For gases, decreasing the pressure will cause the equilibrium to shift towards the side with higher number of moles. So V is true.
The reaction is endothermic, so increasing the temperature will shift the equilibrium to the products, so IV is false. And adding a catalyst has no effect on the equilibrium, so III is false.
Answer:
An example of a weak base is ammonia. It does not contain hydroxide ions, but it reacts with water to produce ammonium ions and hydroxide ions. The position of equilibrium varies from base to base when a weak base reacts with water. The further to the left it is, the weaker the base.
Explanation:
I hope this helps!!
Answer:
Wavelength is 3.08 meters.
Explanation:
It is given that,
Frequency, 
We need to find the wavelength of the carrier wave of a campus radio station. It can be calculated by using following relation as :
So, the wavelength of the carrier wave is 3.08 meters. Hence, this is the required solution.
Answer: B
To measure a lower-pitched sound wave, you would
measure fewer compressions per second. Pitch <span>relates to frequency by measuring how many times a second the
particles vibrate. Therefore, the lower-pitched sounds, the fewer compression waves or sound waves are produce because low-frequency
sounds have greater distance between each wave.</span>
Moreover,
the frequency of a wave is measured as the number of complete
back-and-forth vibrations of a particle of the medium per unit of time. <span>The universal unit for frequency used is
the Hertz (abbreviated Hz), where 1
Hertz = 1 vibration/second. </span>
Answer:
b
Explanation:
we just have to add the resistance and the ans comes 14...i am not sure but we do it like this
