The correct answer for this question is activation energy, orientation, and frequency.
The rate of a chemical reaction is directly related to its activation energy because the higher the activation energy the lower is the rate of reaction as we know the reaction only proceed when the reactants have absorbed the enough heat energy to reach the transition state. Thus activation energy determines the rate of reaction.
The orientation of the particles is also very important as we know that the reaction between the two reactants only occur when they collide with proper orientation in time the greater the probability of the collision the greater is the rate of reaction and also the number of collisions also determines the rate of reaction.
The frequency is directly proportional to the rate of chemical reaction as the frequency of the collision increases the rate of the chemical reaction also increases.
To know more about the factors effecting rate of chemical reaction click here:
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Answer:
A:There must be diversity in the population.
Explanation:
Hopefully this helps!
Answer:
I think its the last one
Explanation:
its supposed to be H 2 O 2.
Answer: The mass in
atoms of zinc is 0.405 g.
Explanation:
Given: Atoms of zinc = ![3.75 \times 10^{21}](https://tex.z-dn.net/?f=3.75%20%5Ctimes%2010%5E%7B21%7D)
It is known that 1 mole of every substance contains
atoms. So, the number of moles in given number of atoms is as follows.
![Moles = \frac{3.75 \times 10^{21}}{6.022 \times 10^{23}}\\= 0.622 \times 10^{-2}\\= 0.0062 mol](https://tex.z-dn.net/?f=Moles%20%3D%20%5Cfrac%7B3.75%20%5Ctimes%2010%5E%7B21%7D%7D%7B6.022%20%5Ctimes%2010%5E%7B23%7D%7D%5C%5C%3D%200.622%20%5Ctimes%2010%5E%7B-2%7D%5C%5C%3D%200.0062%20mol)
As moles is the mass of a substance divided by its molar mass. So, mass of zinc (molar mass = 65.39 g/mol) is calculated as follows.
![Moles = \frac{mass}{molar mass}\\0.0062 mol = \frac{mass}{65.39 g}\\mass = 0.405 g](https://tex.z-dn.net/?f=Moles%20%3D%20%5Cfrac%7Bmass%7D%7Bmolar%20mass%7D%5C%5C0.0062%20mol%20%3D%20%5Cfrac%7Bmass%7D%7B65.39%20g%7D%5C%5Cmass%20%3D%200.405%20g)
Thus, we can conclude that the mass in
atoms of zinc is 0.405 g.