MS-PS1-5
Flashcard
•
Science
•
8th Grade
•
Easy
+2
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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 reactants equals the total mass of products.
Tags
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
What is a chemical formula?
Back
A chemical formula is a shorthand notation that represents a compound or molecule, indicating the types and numbers of atoms present.
Tags
NGSS.MS-PS1-1
3.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Reactants are the starting substances in a chemical reaction that undergo change to form products.
Tags
NGSS.MS-PS1-1
4.
FLASHCARD QUESTION
Front
What are products in a chemical equation?
Back
Products are the substances formed as a result of a chemical reaction.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
How do you determine the number of atoms in a chemical formula?
Back
Count the subscripts in the formula; if no subscript is present, it is assumed to be one.
Tags
NGSS.MS-PS1-1
6.
FLASHCARD QUESTION
Front
What is the difference between a solid, liquid, and gas?
Back
Solids have a definite shape and volume, liquids have a definite volume but take the shape of their container, and gases have neither a definite shape nor volume.
Tags
NGSS.MS-PS1-4
7.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A chemical reaction is a process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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