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Determine the activiation energy in kJ/mol for a certain chemical reaction that has a rate constant of 6.79 × 104 M -1s -1 at [x] K and a rate constant of [y] M -1s -1 at [z] K.  Enter your answer with three significant figures and the correct units.

About how long does it take to create a first impression?

The energy needed to proceed from reactants to products is called

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Determine the rate law and the value of k for the following reaction using the data provided.  Remember to show all written work to receive any credit for this problem. S2O82⁻(aq) + 3 I⁻(aq) → 2 SO42⁻(g) + I3⁻(aq) [S2O82⁻]i (M) [I⁻]i (M) Initial Rate (M/s) 0.30 0.42 4.54 0.44 0.42 6.65 0.44 0.21 3.33

A reaction occurs via the following sequence of elementary steps.  Identify the reaction intermediate(s). 1st step: A ⇌ B very fast 2nd step: B + C → D slow 3rd step: D → 2E fast

What is the first step to writting any message?

A formal group is a loose association of people without stated rules or goals.

Nearly all forms of education show that __________ practice is superior to massed practice in producing better memory.

Given the following balanced equation, determine the rate of reaction with respect to [NH3]. N2(g) + 3 H2(g) → 2 NH3(g)