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Fun with Dot and Cross Diagrams: Covalent, Ionic & Coordinate Bonding Answers for Kids!

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Laks Ar

2/2/2023

AP Chemistry

Covalent Bonds Worksheet

Fun with Dot and Cross Diagrams: Covalent, Ionic & Coordinate Bonding Answers for Kids!

This document covers drawing dot and cross diagrams for covalent bonds and coordinate bonds. It provides practice exercises for students to illustrate molecular structures and bond formation.

Key points:

  • Includes examples of covalent molecules like carbonyl chloride and carbon sulfide
  • Demonstrates coordinate bond formation in compounds like boron trifluoride with ammonia
  • Covers the formation of phosphonium ion from phosphine and a hydrogen ion
...

2/2/2023

11

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AP Chemistry

11

Feb 2, 2023

1 page

Fun with Dot and Cross Diagrams: Covalent, Ionic & Coordinate Bonding Answers for Kids!

This document covers drawing dot and cross diagrams for covalent bonds and coordinate bonds. It provides practice exercises for students to illustrate molecular structures and bond formation.

Key points:

  • Includes examples of covalent molecules like carbonyl chloride and carbon sulfide... Show more

3. Draw dot-and-cross diagrams for the following corantly bonded molecules:
a) carbony, chloride o=CC₂
6) carbon sulfide, CS₂
O
X
SENSAS
F
X

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Drawing Dot and Cross Diagrams for Covalent and Coordinate Bonds

This page provides practice exercises for drawing dot and cross diagrams for covalent bonds and coordinate bonds. It aims to help students visualize and understand molecular structures and bond formation in various compounds.

The worksheet is divided into two main sections:

  1. Covalent Bonding Diagrams Students are asked to draw dot-and-cross diagrams for covalently bonded molecules. This section includes examples such as: a) Carbonyl chloride COCl2COCl₂ b) Carbon sulfide CS2CS₂ Example: For carbonyl chloride COCl2COCl₂, the diagram shows the central carbon atom bonded to one oxygen atom and two chlorine atoms, with electrons represented by dots and crosses.
  2. Coordinate Bond Formation This section focuses on illustrating the formation of coordinate ordativeor dative bonds. Two examples are provided: i) The reaction between boron trifluoride BF3BF₃ and ammonia NH3NH₃ to form F₃BNH₃ Highlight: This example demonstrates how the lone pair of electrons from the nitrogen atom in ammonia is shared with the boron atom in boron trifluoride, forming a coordinate bond. ii) The formation of the phosphonium ion PH4+PH₄⁺ from phosphine PH3PH₃ and a hydrogen ion H+H⁺ Vocabulary: A coordinate bond alsoknownasadativebondalso known as a dative bond is a type of covalent bond where both electrons in the shared pair come from the same atom.

The worksheet provides space for students to draw their answers, encouraging hands-on practice in representing these molecular structures and bonding types.

Definition: Dot and cross diagrams are visual representations of molecular structures that show the arrangement of valence electrons around atoms using dots and crosses to distinguish electrons from different atoms.

This practice sheet is an excellent resource for students studying covalent bonding and coordinate bond formation, providing a practical approach to understanding these fundamental concepts in chemistry.

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