Balancing Chemical Equations

Flashcard
•
Science
•
10th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.
Tags
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
What does it mean if an equation is unbalanced?
Back
An unbalanced equation does not have the same number of atoms of each element on both sides, which violates the law of conservation of mass.
Tags
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What is the purpose of balancing chemical equations?
Back
Balancing chemical equations ensures that the same amount of matter is present before and after a chemical reaction, reflecting the conservation of mass.
Tags
NGSS.MS-PS1-5
4.
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.
5.
FLASHCARD QUESTION
Front
What is a subscript in a chemical formula?
Back
A subscript is a small number written to the right of an element symbol that indicates the number of atoms of that element in a molecule.
6.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Reactants are the starting substances that undergo a chemical change in a reaction, found on the left side of the equation.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
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-PS1-1
NGSS.MS-PS1-5
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