Balancing chemical equations
Flashcard
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Science
•
7th Grade
•
Practice Problem
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Medium
Matt Rosenhouse
Used 1+ times
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14 questions
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1.
FLASHCARD QUESTION
Front
Law of Conservation of Mass
Back
It states that no matter can be created or destroyed.
2.
FLASHCARD QUESTION
Front
What does the 2 represent in the following chemical equation: 2Na3?
Back
coefficient
3.
FLASHCARD QUESTION
Front
Which equation best represents the law of conservation of mass? Options: A, B, C, D
Back
C
4.
FLASHCARD QUESTION
Front
Which of the following is a balanced chemical equation? 1) H2 + O2 ---> H2O 2) 2H2 + O2 ---> 2H2O 3) H2 + 2O2 ---> H2O
Back
2H2 + O2 ---> 2H2O
5.
FLASHCARD QUESTION
Front
What is the left part of a chemical equation called? 2H2 + O2 ---> 2H2O
Back
Reactants
6.
FLASHCARD QUESTION
Front
What is the right part of a chemical equation called? 2H2 + O2 ---> 2H2O
Back
Products
7.
FLASHCARD QUESTION
Front
What is the little number after an element in a chemical equation called? Example: H2
Back
Subscript
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