Balancing Chemical Equations
Flashcard
•
Science
•
8th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is H₂O?
Back
A compound consisting of two hydrogen atoms and one oxygen atom.
2.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
It states that matter cannot be created or destroyed.
3.
FLASHCARD QUESTION
Front
How many elements are in C₆H₁₂O₆?
Back
3 (Carbon, Hydrogen, Oxygen).
4.
FLASHCARD QUESTION
Front
What is the little number after an element in a chemical equation called?
Back
Subscript.
5.
FLASHCARD QUESTION
Front
Which of the following is a balanced equation?
Back
2Na + 2H₂O → 2NaOH + H₂.
6.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A number placed in front of a chemical formula to indicate the number of molecules.
7.
FLASHCARD QUESTION
Front
What is a reactant in a chemical reaction?
Back
A substance that undergoes change during a reaction.
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