Balancing Chemical Equations
Flashcard
•
Chemistry
•
8th - 9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.
2.
FLASHCARD QUESTION
Front
What is the first step in balancing a chemical equation?
Back
Identify the number of atoms of each element in the reactants and products.
3.
FLASHCARD QUESTION
Front
What does the coefficient in a chemical equation represent?
Back
The coefficient indicates the number of molecules or moles of a 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 matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
5.
FLASHCARD QUESTION
Front
How do you balance the equation: H2 + O2 → H2O?
Back
The balanced equation is 2H2 + O2 → 2H2O.
6.
FLASHCARD QUESTION
Front
What is the significance of balancing chemical equations?
Back
Balancing chemical equations ensures that the law of conservation of mass is followed, showing that the same number of atoms are present before and after the reaction.
7.
FLASHCARD QUESTION
Front
What is a reactant in a chemical reaction?
Back
A reactant is a substance that undergoes change during a chemical reaction.
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