

Balancing Chemical Equations
Flashcard
•
Chemistry
•
1st - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens in a decomposition reaction?
Back
The elements break down.
2.
FLASHCARD QUESTION
Front
What is the total mass of the reactants compared to the total mass of the products at the end of a chemical reaction?
Back
The mass is the same.
3.
FLASHCARD QUESTION
Front
True or False: Chemical equations use symbols instead of words to summarize chemical reactions.
Back
True.
4.
FLASHCARD QUESTION
Front
Why is the equation H2 + O2 → H2O not balanced?
Back
Each side of the equation has a different number of oxygen atoms.
5.
FLASHCARD QUESTION
Front
What is an example of a synthesis reaction?
Back
Na + Br2 → NaBr.
6.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A way to show a chemical reaction using symbols.
7.
FLASHCARD QUESTION
Front
What are reactants?
Back
The starting substances in a chemical reaction.
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