
Unit 7 (Part 4) Vocab
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
A system where matter can enter or escape the surroundings.
Back
open system
2.
FLASHCARD QUESTION
Front
A system where no matter enters or leaves
Back
closed system
3.
FLASHCARD QUESTION
Front
A substance present at the start of a chemical reaction
Back
reactant
4.
FLASHCARD QUESTION
Front
A substance produced in a chemical reaction
Back
product
5.
FLASHCARD QUESTION
Front
Abbreviation of an element's name (1-3 letters)
Back
element symbol
6.
FLASHCARD QUESTION
Front
A number in front of a chemical formula indicating the amount of molecules or atoms in a reaction.
Back
coefficient
7.
FLASHCARD QUESTION
Front
Symbols showing elements in a compound and atom ratios
Back
chemical formula
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