Nitrosyl bromide, NOBr, is formed from NO and Br2. 2 NO(g) + Br2(g) 2 NOBr(g)
Experiments show the reaction is second order in NO and first order in Br2.
(a) What is the rate equation for the reaction?
rate = k[NO]2[Br2]
rate = k[NO][Br2]
rate = k[NO]2[Br2]2
rate = k[NO]2[Br]2

(b) How does the reaction rate change if the concentration of Br2 is changed from 0.0022 mol/L to 0.0066 mol/L?
the rate will double
the rate will remain unchanged
the rate will triple

(c) What is the change in the reaction rate if the concentration of NO is changed from 0.0024 mol/L to 0.0048 mol/L?
the rate will increase by a factor of 4
the rate will remain unchanged
the rate will also decrease by a factor of 1/2

(a) What is the rate equation for the reaction?

rate = k[NO]2[Br2]

Explanation:

(b) How does the reaction rate change if the concentration of Br2 is changed from 0.0022 mol/L to 0.0066 mol/L?

the rate will doubleNitrosyl bromide, NOBr, is formed from NO and Br2.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.