Chemistry flashcards also bro

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Last updated 3:10 PM on 8/29/26
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13 Terms

1
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Unified atomic mass

One twelfth of the mass of a carbon-12 atom

2
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Relative atomic mass

The mass of particular atom of an isotope compared to the value of the unified atomic mass unit

3
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Relative molecular mass

The weighted average mass of a molecule in a given sample of that molecule compared to the value of the unified atomic mass.

4
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wew

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wdwe

6
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7
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Boron trifluoride
structural formula
shape of molecule
Bond angle


BF3
Trigonal Planar
120*

8
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Carbon dioxide CO2

Linear
180*

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Methane CH4

Tetrahedral
109.5*

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Ammonia

Pyramidal
107*

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Water

Non linear
104.5

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SF6
name also

Sulfur hexafluoride
Octahedral
90*

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PF5

Phosphorus pentafluoride
Trigonal Bipyramidal
3(F-P-F) = 120*
2(F-P)= 90*