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Rate Constant and Periodic Trends

I need some help answering these two questions:
1. For the following balanced reaction, determine the rate expression and the rate constant, k, for it using the data given below.

2A + B +C yields D + 2E + F

Experiment [A] mol/L [B] mol/L [C] mol/L Rate (M sec-1)

1 1.50 x 10-3 2.00 x 10-3 1.20 x 10-4 6.50 x 10-5
2 1.50 x 10-3 2.83 x 10-3 1.20 x 10-4 1.30 x 10-4
3 3.00 x 10-3 2.00 x 10-3 2.40 x 10-4 3.25 x 10-5
4 3.00 x 10-3 2.00 x 10-3 3.00 x 10-4 2.08 x 10-5

2. The compound boron nitride (BN) is comparable in hardness to diamond. Based on periodic trends, atomic interactions, bonding, etc., is this expected. Please explain the answer.

Solution Summary

This in-depth solution shows step-by-step calculations in determining the rate constant. In addition, the atomic properties of boron nitride is analyzed for periodic trends and variety of structural shapes.

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