Balancing Chemical Equations
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the two sides of a chemical equation called?
Back
Reactants (left) and Products (right)
2.
FLASHCARD QUESTION
Front
What is the little number after an element in a chemical equation called?
Back
Subscript
3.
FLASHCARD QUESTION
Front
In the equation PCl5 + ___ H2O → ___ HCl + H3PO4, what are the coefficients for H2O and HCl?
Back
4 for H2O and 5 for HCl
4.
FLASHCARD QUESTION
Front
What can be placed to the left of a formula of a substance to balance a chemical equation?
Back
Coefficient
5.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
Matter cannot be gained or lost in a chemical reaction.
6.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
An equation where the number of atoms for each element is the same on both sides.
7.
FLASHCARD QUESTION
Front
What is the purpose of balancing chemical equations?
Back
To ensure that the same number of atoms of each element is present on both sides of the equation.
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