Elements, Molecules, Compounds Flashcards

1
Q

Note

A

Most chemicals in the body are in the form of molecules

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2
Q

Molecules

A

Are particles of matter that are composed of one or more atoms. It’s the larger chemical unit of atoms

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3
Q

Note to remember

A

Atoms usually unite with each other to form larger chemical units called molecules

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4
Q

Chemical formula

A

Determines atoms present in a compound

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5
Q

The formula for a compound contains..

A

Symbols that represent each element in the molecule

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6
Q

Note to remember

A

The number of atoms of each element in the molecule is expressed as a subscript after the elemental symbol

For example; each molecule of the compound carbon dioxide has one carbon (C) atom and two oxygen (O) atoms; thus its molecular formal is CO2

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