Balancing Equations
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
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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 a chemical reaction.
2.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.
3.
FLASHCARD QUESTION
Front
How do you balance a chemical equation?
Back
To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms for each element is equal on both sides.
4.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A coefficient is a number placed in front of a chemical formula in an equation to indicate how many molecules or moles of that substance are involved.
5.
FLASHCARD QUESTION
Front
What does it mean if a chemical equation is unbalanced?
Back
An unbalanced chemical equation does not have the same number of each type of atom on both sides, indicating that the reaction does not obey the law of conservation of mass.
6.
FLASHCARD QUESTION
Front
What is the purpose of balancing chemical equations?
Back
Balancing chemical equations ensures that the reaction accurately represents the conservation of mass and allows for the correct stoichiometric calculations.
7.
FLASHCARD QUESTION
Front
What is the total number of atoms in H2SO4?
Back
There are 7 atoms in H2SO4 (2 hydrogen, 1 sulfur, and 4 oxygen).
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