Answer:
The American Revolutionary war
D erosion will increase carring more sand away than before
The scariest animal in my opinion is the Human and yes, this is an animal. I think it would affect the investigation because we are manipulating and mind twisting creatures who prey on the weak. I think that we are the most dangerous and scariest animal on this earth with no doubt. We kill our own kind for no reason and we don't accept anyone who is different. We are the scariest, smartest and yet unintelligent animals.
Explanation:
A + B + C → D
Given rate law of the reaction :
![R=k[A]^2[B]](https://tex.z-dn.net/?f=R%3Dk%5BA%5D%5E2%5BB%5D)
a) Rate of the reaction if [A] is doubled = R'
![R'=k[2A]^2[B]=4k[A]^2[B]](https://tex.z-dn.net/?f=R%27%3Dk%5B2A%5D%5E2%5BB%5D%3D4k%5BA%5D%5E2%5BB%5D)
R' = 4 × R
The rate of the reaction will change by factor of 4.
b) Rate of the reaction if [B] is reduced to quarter = R'
![R'=k[A]^2[\frac{B}{4}]=0.25k[A]^2[B]](https://tex.z-dn.net/?f=R%27%3Dk%5BA%5D%5E2%5B%5Cfrac%7BB%7D%7B4%7D%5D%3D0.25k%5BA%5D%5E2%5BB%5D)
R' = 0.25 × R
The rate of the reaction will change by factor of 0.25.
c) Rate of the reaction if [C] is increased by 3 times= R'
Rate law of the reaction :
![R'=k[A]^2[B]](https://tex.z-dn.net/?f=R%27%3Dk%5BA%5D%5E2%5BB%5D)
As we can see that [C] does not appears in rate law of the reaction, which means that rte of the reaction is independent of [C].
R' = R
The rate of the reaction will remain the same.
The expected rate constant value for this experiment:
![R=k[A]^2[B]](https://tex.z-dn.net/?f=R%3Dk%5BA%5D%5E2%5BB%5D)
![k=\frac{R}{[A]^2[B]}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7BR%7D%7B%5BA%5D%5E2%5BB%5D%7D)