Chemistry, 08.09.2020 02:01, thicklooney
PLEASE ANSWER ASAP A classmate argues that the changes in energy that occur in a pendulum are unrelated to the energy changes that a burning log undergoes. She points out that the burning of a log is an irreversible chemical change in matter, while the energy changes in a moving pendulum are constantly reversing, and are examples of physical changes. Evaluate your classmate’s argument.
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Chemistry, 22.06.2019 23:00, lufung8627
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
PLEASE ANSWER ASAP A classmate argues that the changes in energy that occur in a pendulum are unrela...
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