Law of Conservation of Matter
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 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
What is a coefficient in a chemical equation?
Back
A coefficient is a number in front of a chemical formula that indicates how many molecules or compounds of each reactant and product are involved in a reaction.
3.
FLASHCARD QUESTION
Front
If 20g of sugar is added to 100g of water, what is the mass of the solution?
Back
The mass of the solution will be 120g (20g of sugar + 100g of water).
4.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A molecule is two or more atoms joined together, which can be from the same element or different elements.
5.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more different elements are chemically bonded together.
6.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.
7.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
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