
Counting/Balancing Chemical Equations Test Review
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a coefficient?
Back
The large number to the left of a formula.
2.
FLASHCARD QUESTION
Front
Choose the coefficients that will correctly balance this equation: CH₄ + O₂ → CO₂ + H₂O
Back
1,2,1,2
3.
FLASHCARD QUESTION
Front
In a ______________________________ energy is absorbed by the system as heat.
Back
Endothermic Reaction
4.
FLASHCARD QUESTION
Front
What is the left part of a chemical equation called? 2H₂ + O₂ → 2H₂O
Back
Reactants
5.
FLASHCARD QUESTION
Front
What coefficient belongs with hydrochloric acid (HCl) in the equation: Mg + ___ HCl → MgCl₂ + H₂?
Back
2
6.
FLASHCARD QUESTION
Front
What is an exothermic reaction?
Back
A reaction that releases energy in the form of heat.
7.
FLASHCARD QUESTION
Front
What are products in a chemical equation?
Back
Substances formed as a result of a chemical reaction.
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