Chemical Formula Balancing and Reaction Types Review
Flashcard
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their respective quantities.
2.
FLASHCARD QUESTION
Front
What does it mean to balance a chemical equation?
Back
Balancing a chemical equation means ensuring that the number of atoms of each element is the same on both sides of the equation, adhering to the law of conservation of mass.
3.
FLASHCARD QUESTION
Front
What are coefficients in a chemical equation?
Back
Coefficients are the numbers placed before the compounds in a chemical equation to indicate the relative amounts of each substance involved in the reaction.
4.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
5.
FLASHCARD QUESTION
Front
What type of reaction is represented by C7H14 + O2 → CO2 + H2O?
Back
This reaction is a combustion reaction, where a hydrocarbon reacts with oxygen to produce carbon dioxide and water.
6.
FLASHCARD QUESTION
Front
How many oxygen atoms are in 2H2O?
Back
There are 2 oxygen atoms in 2H2O.
7.
FLASHCARD QUESTION
Front
What is a decomposition reaction?
Back
A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.
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