What is a molecule?
Chemistry Flashcard Review 24

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•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A molecule is a group of two or more atoms bonded together. It can be made up of the same or different elements.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more different elements are chemically bonded together.
3.
FLASHCARD QUESTION
Front
What is the difference between a molecule and a compound?
Back
A molecule can consist of the same type of atoms (like O2), while a compound consists of different types of atoms (like H2O).
4.
FLASHCARD QUESTION
Front
What are physical properties?
Back
Physical properties are characteristics of a substance that can be observed without changing its identity, such as color, odor, and melting point.
5.
FLASHCARD QUESTION
Front
What are chemical properties?
Back
Chemical properties describe how a substance interacts with other substances and how it changes into a different substance.
6.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.
7.
FLASHCARD QUESTION
Front
What is an example of a physical property?
Back
An example of a physical property is the boiling point of water, which is 100°C at sea level.
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