What is a substance that exists before a chemical reaction takes place?
7 - Lesson 12 Chemical Reaction Vocab

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Science
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7th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Reactant
2.
FLASHCARD QUESTION
Front
What is the scientific law stating that matter cannot be created or destroyed?
Back
Law of Conservation of Matter
3.
FLASHCARD QUESTION
Front
What is a process in which one or more new substances form from one or more other substances?
Back
Chemical reaction
4.
FLASHCARD QUESTION
Front
What type of test do medical scientists perform to assess a medicine's effectiveness?
Back
Clinical trial
5.
FLASHCARD QUESTION
Front
What is a chemical reaction that releases more energy to the surroundings than it absorbs?
Back
Exothermic reaction
6.
FLASHCARD QUESTION
Front
What do we call a substance formed as a result of a chemical reaction?
Back
Product
7.
FLASHCARD QUESTION
Front
What is the term for a reaction that absorbs energy from its surroundings?
Back
Endothermic reaction
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