What is an atom?
Atoms, Elements, Molecules, Compounds, LOCOM

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The smallest unit of an element that retains the properties of that element.
2.
FLASHCARD QUESTION
Front
What is an element?
Back
A pure substance that cannot be broken down into simpler substances by chemical means.
3.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A group of two or more atoms bonded together.
4.
FLASHCARD QUESTION
Front
What is a compound?
Back
A substance formed when two or more different elements are chemically bonded together.
5.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Mass?
Back
Mass is never created or destroyed in a chemical reaction.
6.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.
7.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process that involves the rearrangement of the molecular or ionic structure of a substance.
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