Molecular Geometry and Bond Angles

Molecular Geometry and Bond Angles

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial explores the molecular geometry of C2H4, focusing on the central carbon atoms. It explains the use of VSEPR theory to understand how atoms spread out in three dimensions. The tutorial introduces AXN notation to determine the molecular shape, identifying C2H4 as having a trigonal planar geometry with 120° bond angles. The explanation is supported by a step-by-step analysis of the Lewis structure and the arrangement of atoms.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the central atom considered in the molecular geometry of C2H4?

Oxygen

Carbon

Nitrogen

Hydrogen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to VSEPR theory, how do atoms in a molecule arrange themselves?

In a straight line

As far apart as possible in three dimensions

Close together in a cluster

In a circle

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'X' represent in the AXN notation for molecular geometry?

The type of bonds

The central atom

The number of atoms bonded to the central atom

The number of lone pairs

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are bonded to the central carbon in C2H4 according to AXN notation?

5

4

2

3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molecular shape of C2H4 as determined by AXN notation?

Linear

Tetrahedral

Bent

Trigonal planar

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the bond angle in a trigonal planar molecular geometry?

120°

180°

109.5°

90°

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many degrees do the bond angles in C2H4 add up to?

180°

240°

360°

300°

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