Estimate the heat of reaction at 298 K for the reaction shown, given the average bond energies below. Show your work.              Br2(g) + 3F2(g)

Assume the following reaction occurs by the given reaction mechanism.             3H2 + CO  

The rate constant for the first-order reaction below is k = 3.3 × 10−2 min−1 at 57 K. What is the half-life (in minutes) for this reaction at 57 K?            A →  B + C

Which chemical change listed below represents a decrease in entropy?

Match to best answers.

What type of rock is primarily formed through the accumulation and compaction of sediments?

What is an essential service the Critical Zone provides?

What is an essential service the Critical Zone provides?

What major economic resource comes from sedimentary rocks?

What major economic resource comes from sedimentary rocks?