For the reaction a+2b→c under a given set of conditions, the initial rate is 0.180 m/s. part a what is δ[b]/δt under the same conditions?

- 0.36 m/s.

Explanation:

∵ The initial rate of the reaction = - δ[a]/δt = - 1/2 δ[b]/dt = 0.180 m/s.

∴ The initial rate of the reaction = - 1/2 δ[b]/dt = 0.180 m/s.

∴ - 1/2 δ[b]/dt = 0.180 m/s.

∴ δ[b]/dt = (- 2)(0.180 m/s) = - 0.36 m/s.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.