Answer:
Substances are used up in a reaction.
Explanation:
Answer: It will take for the concentration of A to decrease from 0.900 M to 0.210 M is 28.75 s
Explanation:
Zero order reaction : A reaction is said to be of zero order if the rate is independent of the concentration of the reactants, that means the rate is directly proportional to the zeroth power of the concentration of the reactants.
Expression for the zero order kinetics:
![[A]=-kt+[A]_o](https://tex.z-dn.net/?f=%5BA%5D%3D-kt%2B%5BA%5D_o)
where [A] = concentration left after time t = 0.210 M
= initial concentration = 0.900 M
k= rate constant =![0.0240Ms^{-1}](https://tex.z-dn.net/?f=0.0240Ms%5E%7B-1%7D)
t = time for reaction = ?
![0.210=-0.0240\times t+0.900](https://tex.z-dn.net/?f=0.210%3D-0.0240%5Ctimes%20t%2B0.900)
![t=28.75s](https://tex.z-dn.net/?f=t%3D28.75s)
Thus it will take for the concentration of A to decrease from 0.900 M to 0.210 M is 28.75 s
<span>oxidizing agent removes an electron from other specie
the oxidizing agents are reduced due to loss of electrons
</span><span> F2 is reduced from neutral state to 1- so it act as an oxidizing agent
</span>so correct option is A
hope it helps
Answer:
0.808 g x 1000 = 808 mg.
250 ml/1000 = 0.25 L.
808 mg/0.25 L= 3232 mg/L = ppm.
Hope this helps you. Do mark me as brainliest.
I think because they move so slow we can’t tell