there are a few different types of reactions and they are molecular reactions, compound reactions, atomic reaction, nuclear reaction
hope this was sort of helpful
From n=3 to n=1
<span>according to extension of the Wavelength in electron transition from n=3 to n=1 </span>
Answer:- D) particles .
Solution:- There are 1.53 moles of the compound are given and it asks to calculate the number of particles.
To calculate the number of particles we multiply the moles with Avogadro number.
=
So, the D is the right choice.
<span>No, the battery does not need to be recharged.
The balanced reaction is:
NaOH + H2SO4 ==> Na2SO4 + H2O
So for each mole of H2SO4, one mole of NaOH is needed. So let's determine the number of moles of NaOH we used:
0.03126 L * 0.621 mol/L = 0.01941246 mol
So we now know that 0.01941246 moles of H2SO4 was present in the sample. And since molarity is defined as moles per liter, we can divide the number of moles we had by the number of liters to get molarity. So:
0.01941246 / 0.002 = 9.706 M.
This molarity is way too high to be reasonable. So let's do a sanity check on the original measured quantities. Our original sample is 2.00 ml and we titrated with 31.26 ml or 31.26/2 = 15.63 times as much base. So the molarity should be that value times the molarity of the base, which is 15.63 * 0.621 = 9.706 which matches the original calculated figure.
The conclusion is that the battery does not need to be recharged. If anything, it's over charged. Also, it's highly likely that this problem has a typo and that the figures given are incorrect. Please check your original problem before using this as your answer.</span>