What is the Law of Conservation of Mass?
Conservation of Mass

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Science
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6th - 8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
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.
2.
FLASHCARD QUESTION
Front
What are reactants in a chemical reaction?
Back
Reactants are the substances that are present at the start of a chemical reaction and undergo change.
3.
FLASHCARD QUESTION
Front
What are products in a chemical reaction?
Back
Products are the substances that are formed as a result of a chemical reaction.
4.
FLASHCARD QUESTION
Front
Which model best represents the Law of Conservation of Mass?
Back
Model A best represents the Law of Conservation of Mass, as it shows that the mass of reactants equals the mass of products.
5.
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.
6.
FLASHCARD QUESTION
Front
What is the significance of coefficients in a chemical equation?
Back
Coefficients indicate the number of molecules or moles of a substance involved in a chemical reaction, helping to balance the equation according to the Law of Conservation of Mass.
7.
FLASHCARD QUESTION
Front
What is the difference between a reactant and a product?
Back
A reactant is a starting material in a chemical reaction, while a product is a substance formed as a result of the reaction.
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