178 of each species
178 protons
178 neutrons
And 178 electrons
Answer:- The wavelength is
and the right option is D.
Solution:- Wavelength is inversely proportional to the frequency and the equation is:

where,
is the wavelength, c is the speed of light and
is frequency.
Frequency is
and the speed of light is
.
Since, 
So, 
Let's plug in the values in the equation:


Hence, the right option is D)
.
Answer:
The equilibrium will change in the direction of the reactants
Explanation:
Fine pebbles have a higher threshold velocity than sand
~ hope this helps! ❤️
Answer: Andre. If it is used as an antifreeze, one would infer that it's freezing point is less than water.
Explanation:
The freezing point of ethylene glycol alone (100%) is -12.9oC. That is somewhat less than the freezing point of water but nowhere near the freezing point of water containing 70% ethylene glycol.