Chemistry Semester 1 Final
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the law of conservation of energy/mass state?
Back
Energy/Matter is transferred or transformed from one system to another.
2.
FLASHCARD QUESTION
Front
What is an open system?
Back
Energy and matter are exchanged freely with the surroundings.
3.
FLASHCARD QUESTION
Front
Define endothermic.
Back
Endothermic refers to a process that absorbs heat.
4.
FLASHCARD QUESTION
Front
Is this showing an endothermic or an exothermic reaction?
Back
Endothermic.
5.
FLASHCARD QUESTION
Front
Describe an atom consisting of protons, neutrons, and electrons with 7 protons, 7 neutrons, and 7 electrons.
Back
This atom has 7 protons, 7 neutrons, and 7 electrons.
6.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
An exothermic reaction is a process that releases heat.
7.
FLASHCARD QUESTION
Front
What is the difference between an open system and a closed system?
Back
In a closed system, energy is exchanged but matter is not.
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