The answer is Helium. hope its helpful (:
Answer:
<h2>
The no. of moles present in one liter solution is 0.843</h2>
Explanation:
Mass of ammonium chloride = 11.5 gm
Molar mass of ammonium chloride = 53.491 gm
No. of moles


N = 0.215 moles


M = 0.843 M
Thus the no. of moles present in one liter solution is 0.843
Answer:
Second order
Explanation:
Given that:
When the reaction A → B + C is studied, a plot 1/[A]t vs. time gives a straight line with a positive slope.
From the integration method for the second order of reaction.
Suppose that:
rate = k₂[A]²
∴

Therefore, a plot of the linear function
versus t will be linear with a positive slope k₂ and the intercept on the concentration axis will be 
The linear plot for a second order reaction can be seen in theimage attached below.
A nuclear to thermal and radiant
Explanation:
Nuclear fission is the disintegration of the force that holds the nucleus of the atom together, creating two different but lighter nuclei.
In nuclear fission, it seeks to break the force of attraction or nuclear force that joins the protons and neutrons that form the nucleus of an atom. Neutrons without electric charge are used against the nucleus of the atom to produce enough excitation energy to deform the nucleus into two halves.