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

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Science
•
6th - 8th Grade
•
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
If a reaction starts with 20g of reactants, how much mass should the products have?
Back
20g of products, according to the Law of Conservation of Mass.
3.
FLASHCARD QUESTION
Front
What is a precipitate?
Back
A precipitate is a solid that forms when two liquids are mixed together.
4.
FLASHCARD QUESTION
Front
Which of the following is not a chemical reaction: Burning of wood, Milk going bad, Mixing vinegar and baking soda, Melting of ice?
Back
Melting of ice is not a chemical reaction; it is a physical change.
5.
FLASHCARD QUESTION
Front
How many grams of chocolate powder are shown in the example of conservation of mass?
Back
15 grams.
6.
FLASHCARD QUESTION
Front
What happens to the mass of reactants during a chemical reaction?
Back
The mass of the reactants remains the same before and after the reaction.
7.
FLASHCARD QUESTION
Front
What is an example of a chemical reaction?
Back
Burning wood is an example of a chemical reaction.
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