EL 5 The molecules of life

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12 Terms

1
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Dative covalent bond

both electrons come from the same atom

2
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How to draw molecules with stick and wedge notation

straight lines represent bonds on the plane of the paper

solid wedge lines represent bonds coming towards you

dashed wedge lines represent bonds going away from you

3
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<p>Bond angle for a tetrahedral molecule</p>

Bond angle for a tetrahedral molecule

109.5

<p>109.5</p>
4
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<p>bond angle for ammonium ion</p>

bond angle for ammonium ion

109.5

<p>109.5</p>
5
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<p>Bond angle for a pyramidal molecule</p>

Bond angle for a pyramidal molecule

107

<p>107</p>
6
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<p>Bond angle for a bent molecule</p>

Bond angle for a bent molecule

104.5

<p>104.5</p>
7
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<p>Bond angle for a linear molecule</p>

Bond angle for a linear molecule

180

<p>180</p>
8
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<p>Bond angle for a planar molecule</p>

Bond angle for a planar molecule

120

<p>120</p>
9
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<p>What kind of molecules are methanal and ethene? </p>

What kind of molecules are methanal and ethene?

planar

<p>planar</p>
10
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<p>Bond angle for bipyramidal molecules</p>

Bond angle for bipyramidal molecules

90 and 120

<p>90 and 120</p>
11
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Bond angle for octahedral molecules

90

<p>90</p>
12
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Electron pairs _____ each other as far away as possible but lone pairs repel ____ than bonded pair

repel

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