p 2.2
Flashcard
•
Science
•
5th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of the reactants equals the total mass of the products.
Tags
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
What happens to the mass of ice when it melts into water?
Back
The mass of ice remains the same when it melts into water; it is conserved.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What is the total mass of a system when a chemical reaction occurs in a closed container?
Back
The total mass of the system remains constant before and after the reaction.
Tags
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
How does the mass of reactants compare to the mass of products in a chemical reaction?
Back
The mass of the reactants is equal to the mass of the products.
Tags
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What is an example of a closed system in a chemical reaction?
Back
A closed container where no mass can enter or leave during the reaction.
Tags
NGSS.MS-PS1-5
6.
FLASHCARD QUESTION
Front
What is the significance of using a sealed container in experiments involving combustion?
Back
Using a sealed container prevents the escape of gases, allowing for accurate measurement of mass before and after the reaction.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
FLASHCARD QUESTION
Front
What is the expected outcome when combining substances in a sealed jar?
Back
The total mass of the substances before the reaction will equal the total mass after the reaction.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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