Balancing equations
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the process of balancing chemical equations?
Back
The process of ensuring that the number of atoms for each element is the same on both sides of a chemical equation.
Tags
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
Matter cannot be gained or lost in a chemical reaction.
Tags
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
What is a reactant?
Back
A substance that undergoes a chemical change in a reaction.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What is a product in a chemical reaction?
Back
A substance that is formed as a result of a chemical reaction.
Tags
NGSS.MS-PS1-5
6.
FLASHCARD QUESTION
Front
How do you determine the number of atoms in a molecule?
Back
Count the number of atoms represented by the subscripts in the chemical formula.
Tags
NGSS.MS-PS1-1
7.
FLASHCARD QUESTION
Front
What is the difference between a coefficient and a subscript?
Back
A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.
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