Answer:
most endothermic reactions
Explanation:
In endothermic reactions, the entropy of the environment decreases.
The entropy is the measure of the disorder of a specific system.
An endothermic reaction is every chemical reaction in which energy is absorbed.
In a comparison of an endodermic reaction in which energy is released in light or heat form.
a. The mass is greater before the change occurs.
Answer: The value of acid ionization constant 
for acetic acid is 
Explanation:
cM 0 0
So dissociation constant will be:
Give c= 0.85 M and 
= 2.4
![pH=-log[H^+]](https://tex.z-dn.net/?f=pH%3D-log%5BH%5E%2B%5D)
Putting in the values we get:
Thus the value of acid ionization constant for acetic acid is
This is because, for the main reason that these elements that are mostly monatomic, are unreactive, they do not react, or in other words, exchange, and or share valence electrons through chemical bonds, as they already posses the maximum number of valence electrons in their valence shell, which is 8.
Answer:
Desert gravel
Explanation:
A desert is an arid region where precipitation is very low all year round.
Wind action such as erosion, transportation and deposition is the most active denudation force in this sort of terrain.
- Desert gravel is one of such feature pronounced in a desert area.
- They form by the gradual removal of the fines which are the sandy and clay sized particles.
- This now leaves the coarser particles behind.
- Desert gravel forms as a result of wind erosion.
