Yes it's a test taken in high school
Q1- Urgent / Important
Q2- Writing a paper that is due in 3 hours
(others can wait as no serious consequences but you could fail n get bad mark if you don't complete the paper. It's a deadline issue.)
The expression (PE products) - (PE reactants) represents the heat of reaction for a chemical change in terms of PE (potential energy).
<h3>What is potential energy?</h3>
Potential energy is any type of energy stored to perform physical work in a given period of time.
Conversely, kinetic energy is motion (movement) energy used when performing physical work.
In conclusion, the expression (PE products) - (PE reactants) represents the heat of reaction for a chemical change in terms of PE (potential energy).
Learn more about potential energy here:
brainly.com/question/14427111
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