Consider the balanced chemical equation. H2O2(aq)+3I−(aq)+2H+(aq)→I3−(aq)+2H 2O(l) In the first 15.0 s of the reaction, the concentration of I− drops from 1.000 M to 0.871 M .Part A Predict the rate of change in the concentration of H2O2 (Δ[H2O2]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[H2O2]/Δt Δ [ H 2 O 2 ] / Δ t =

Part B Predict the rate of change in the concentration of I3− (Δ[I3−]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[I3−]/Δt Δ [ I 3 − ] / Δ t =

Part A. 8.60 × 10⁻³ M/s

Part B. 8.60 × 10⁻³ M/s

Explanation:

Let's consider the following balanced chemical equation.

H₂O₂(aq) + 3 I⁻(aq) + 2 H⁺(aq) → I₃⁻(aq) + 2 H₂O(l)

Part A

The rate of change in the concentration of H₂O₂ is:

-Δ[H₂O₂]/Δt = -(0.871 M - 1.000 M)/15.0 s = 8.60 × 10⁻³ M/s

Part B

The molar ratio of H₂O₂(aq) to I₃⁻(aq) is 1:1. The rate of change in the concentration of I₃⁻ is:

8.60 × 10⁻³ mol H₂O₂/L.s × (1 mol I₃⁻/1 mol H₂O₂) = 8.60 × 10⁻³ mol I₃⁻/L.s = 8.60 × 10⁻³ M/s

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

10 years is the answer