

Chemical Equation Review
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
How many Hydrogen (H) atoms are in NH₃O₅?
Back
3
2.
FLASHCARD QUESTION
Front
A molecule is________
Back
more than one atom bonded together
3.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Matter?
Back
Matter cannot be created or destroyed; it only changes form.
4.
FLASHCARD QUESTION
Front
What are the blue numbers in a chemical formula called?
Back
Subscripts
5.
FLASHCARD QUESTION
Front
Is the following equation balanced? 4Fe + 3O₂ → 2Fe₂O₃
Back
Yes
6.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A representation of a chemical reaction using symbols and formulas.
7.
FLASHCARD QUESTION
Front
What do coefficients in a chemical equation represent?
Back
The number of molecules or moles of a substance.
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