Is first order in bro3⎻ , second order in br⎻, and zero order in h+. by what factor will the reaction rate change if the concentration of bro3⎻ is doubled, the concentration of br⎻ is halved, and the concentration of h+ is tripled ?

For a general reaction,

General expression for rate law  will be:

Here, r is rate of the reaction, k is rate constant, a is order with respect to reactant A and b is order with respect to reactant B.

The reaction is first order with respect to , second order with respect to and zero order with respect to .

According to above information, expression for rate law will be:

Or,

...... (1)

...... (2)

Dividing (2) by (1)

Or,

Thus, rate of the reaction also get doubled.

Or,

...... (3)

Dividing (3) by (1)

Or,

Thus, rate of reaction becomes 1/4th of the initial rate.

Since, the rate expression does not have concentration of , it is independent of it. Thus, any change in the concentration will not affect the rate of reaction and rate of reaction remains the same as in equation (1).

girl imma just put my comment here because i need a couple point okurrttt

the answer is barium and copper bromide