SPS3
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an unbalanced chemical equation?
Back
An unbalanced chemical equation is a representation of a chemical reaction where the number of atoms of each element is not the same on both sides of the equation.
2.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that in a chemical reaction, the mass of the reactants must equal the mass of the products.
3.
FLASHCARD QUESTION
Front
How do you balance a chemical equation?
Back
To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides.
4.
FLASHCARD QUESTION
Front
What is a reactant in a chemical reaction?
Back
A reactant is a substance that undergoes change during a chemical reaction.
5.
FLASHCARD QUESTION
Front
What is a product in a chemical reaction?
Back
A product is a substance that is formed as a result of a chemical reaction.
6.
FLASHCARD QUESTION
Front
What does it mean to balance an equation?
Back
Balancing an equation means ensuring that the number of atoms for each element is the same on both sides of the equation.
7.
FLASHCARD QUESTION
Front
What is the balanced equation for the reaction of nitrogen and oxygen to form nitrogen dioxide?
Back
2NO + O2 → 2NO2.
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