
Balancing Chemical Reactions
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass say?
Back
During a chemical reaction, mass is neither created nor destroyed.
2.
FLASHCARD QUESTION
Front
What must be true for a chemical equation to be balanced?
Back
There must be an equal amount of atoms on both sides.
3.
FLASHCARD QUESTION
Front
Is the following equation balanced or unbalanced? Ag + O2 --> 2Ag2O
Back
Unbalanced.
4.
FLASHCARD QUESTION
Front
Is the following equation balanced or unbalanced? H4 + O2 --> 2H2O
Back
Balanced.
5.
FLASHCARD QUESTION
Front
What do the blue numbers in a chemical equation represent?
Back
Subscripts.
6.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process where reactants are transformed into products.
7.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Substances that undergo change during a chemical reaction.
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