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
#SPJ1
The qualification best demonstrated in each example are:
- Reliability
- Teaching and Leadership Skills.
- Physical strength
<h3>What is the qualification status?</h3>
The term Qualification status is known to be that which shows or tells the formal certification that a person has.
Note that in the case of Ronin performing a careful inspections to identify fire hazards, his qualification will be Reliability.
Learn more about qualification from
brainly.com/question/26119802
#SPJ1
Answer: The answer is the first one and the last one.
Explanation: If an account cost $1 and each song is 1.5x. It has to be less than or equal to 25. So it would be $1 for (the account plus) 1.5x for (how many songs he buys) is less than or equal to 25 (the ammount on the gift card).
The word freedom is the word that should be in the blank.
B : elevator would be the correct answer
