Conservation of Mass
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the principle of conservation of mass?
Back
Matter is not created or destroyed in a chemical reaction.
2.
FLASHCARD QUESTION
Front
When sodium and chlorine combine to form sodium chloride, what is sodium chloride considered?
Back
Product
3.
FLASHCARD QUESTION
Front
If 12g of Carbon reacts with 16g of Oxygen, how much carbon monoxide (CO) is formed?
Back
28 g
4.
FLASHCARD QUESTION
Front
In a reaction A + B ----> C, if reactant A has 5g and product C has 9g, how many grams does reactant B have?
Back
4g
5.
FLASHCARD QUESTION
Front
What is a sign that a chemical reaction has occurred?
Back
Formation of a gas.
6.
FLASHCARD QUESTION
Front
What happens to the total mass of reactants in a chemical reaction?
Back
It remains the same as the total mass of the products.
7.
FLASHCARD QUESTION
Front
Define reactants in a chemical reaction.
Back
Substances that undergo change during a chemical reaction.
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