Balancing chemical equations
Flashcard
•
Science
•
7th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products involved.
Tags
NGSS.MS-PS1-1
2.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Reactants are the substances that undergo a chemical change in a reaction, found on the left side of the equation.
Tags
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What are products in a chemical equation?
Back
Products are the substances formed as a result of a chemical reaction, found on the right side of the equation.
Tags
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
What does it mean to balance a chemical equation?
Back
Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.
Tags
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.
6.
FLASHCARD QUESTION
Front
What is a subscript in a chemical formula?
Back
A subscript is a small number written after an element symbol that indicates the number of atoms of that element in a molecule.
Tags
NGSS.MS-PS1-1
7.
FLASHCARD QUESTION
Front
How do you determine if a chemical equation is balanced?
Back
To determine if a chemical equation is balanced, count the number of atoms of each element on both sides of the equation and ensure they are equal.
Tags
NGSS.MS-PS1-5
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