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Y13 BTEC - Unit 5 - Chemistry > A2 - Molecules, Shapes, Bond Angles and Length > Flashcards

A2 - Molecules, Shapes, Bond Angles and Length Flashcards

1
Q

What is the shape for the C in CH4?

A

Tetrahedral

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2
Q

What is the bond angle for CH4?

A

109 degrees

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3
Q

What is the shape for the C in CH4?

A

Tetrahedral

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4
Q

What is the shape for each C in Ethene?

A

Trigonal Planar

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5
Q

What is the bond angle for each C in Ethene?

A

120 degrees

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6
Q

What is the bond angle for the shape Trigonal planar?

A

120 degrees

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7
Q

What the shape for C in an Alkane if it only has single bonds?

A

Tetrahedral

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8
Q

What the bond angle for C in an Alkane if it only has single bonds?

A

Tetrahedral

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9
Q

What the bond angle for C=C in an Alkene if it has a double bond?

A

120 degrees

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10
Q

What the shape for C=C in an Alkene if it has a double bond?

A

Trigonal planar

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11
Q

What is a single bond made of?

A

Sigma

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12
Q

What is a double bond made?

A

Sigma and Pi

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13
Q

What type of bond is made of a sigma bond?

A

Single bond

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14
Q

What type of bond is made of a sigma and pi?

A

Double bond

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15
Q

Which hybridisation leads to single bonds?

A

SP3

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16
Q

Which hybridisation leads to double bonds?

A

SP2

17
Q

Which hybridisation leads to triple bonds?

A

SP

18
Q

SP2 hybridisation leads to which type of bond?

A

Double

19
Q

SP3 hybridisation leads to which type of bond?

A

Single

20
Q

SP hybridisation leads to which type of bond?

A

Triple

21
Q

Which bond has the shortest length, double or a single?

A

Double

22
Q

Why is a double bond shorter than a single bond?

A

It contains sigma and pi. More electrons are shared between the atoms. Stronger attraction between the nucleus and the shared pair of electrons.

23
Q

Why is double bond stronger than a single bond?

A

It contains sigma and pi. More electrons are shared between the atoms. Stronger attraction between the nucleus and the shared pair of electrons.

24
Q

How is a pi bond made in a double bond?

A

Overlap of the spare P orbitals between two atoms

25
Q

Overlap of the p orbitals leads to what type of bond?

A

Pi in double bond

Y13 BTEC - Unit 5 - Chemistry (9 decks)

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