Review- Law of Conservation of Matter
Flashcard
•
Science
•
8th Grade
•
Hard
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14 questions
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1.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Matter?
Back
The Law of Conservation of Matter states that matter cannot be created or destroyed in a chemical reaction; it can only change forms.
2.
FLASHCARD QUESTION
Front
In a chemical reaction, what happens to the mass of the reactants?
Back
The mass of the reactants equals the mass of the products.
3.
FLASHCARD QUESTION
Front
If a reactant weighs 12g and one product weighs 5g, how do you find the weight of the other product?
Back
Subtract the weight of the known product from the total weight of the reactants.
4.
FLASHCARD QUESTION
Front
What is the total mass of reactants if the products weigh 15g?
Back
The total mass of the reactants is also 15g.
5.
FLASHCARD QUESTION
Front
In the reaction A + B -> C, if A weighs 5g and C weighs 9g, how much does B weigh?
Back
B weighs 4g.
6.
FLASHCARD QUESTION
Front
What does it mean if the mass of the products is greater than the mass of the reactants?
Back
This would violate the Law of Conservation of Matter, indicating an error in measurement or calculation.
7.
FLASHCARD QUESTION
Front
How can you demonstrate the Law of Conservation of Matter with a simple experiment?
Back
By conducting a closed reaction where the mass of reactants is measured before and after the reaction, showing that the mass remains constant.
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