7 - Lesson 12 Chemical Reaction Vocab
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Science
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7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
A chemical reaction that releases more energy to the surroundings than it absorbs.
2.
FLASHCARD QUESTION
Front
What is a clinical trial?
Back
A type of test that medical scientists perform to assess a medicine's effectiveness.
3.
FLASHCARD QUESTION
Front
What is an endothermic reaction?
Back
A chemical reaction that absorbs more energy from the surroundings than it releases.
4.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A shorthand notation made up of arrows and chemical formulas for reactants and products that summarizes what happens during a chemical reaction.
5.
FLASHCARD QUESTION
Front
What is a reactant?
Back
A substance that exists before a chemical reaction takes place and changes as a result of the reaction.
6.
FLASHCARD QUESTION
Front
What is a product in a chemical reaction?
Back
A substance that is formed as a result of a chemical reaction.
7.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
In a chemical reaction, mass is neither created nor destroyed; it is conserved.
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