Eisco CH0603D Manual

INTRODUCTION
In this Water Model Kit (CH0603D) there are two types of plastic balls and two types of
links.
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The larger red ball represents an atom or element of Oxygen (O).
The smaller white ball represents an atom or element of Hydrogen (H).
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The shorter white link represents the covalent bonds within a water molecule (H
between hydrogen and oxygen.
The medium gray link represents the hydrogen bonds between different water
molecules when a partially positive hydrogen is attracted to a partially negative oxygen
atom.
The Hydrogen's and Oxygen's bond covalently within a water molecule (white links,
intramolecular).
The Hydrogen's and Oxygen's of different water molecules are attracted to each other
via hydrogen bonding (gray link, intermolecular forces) due to hydrogens partial positive
and oxygens partial negative charges.
Examples of chemistry concepts supported with the Water Model Kit
● Chemical bonding and bonding types
● Attractive forces and types of interactions
● Atoms, elements, and compounds
● Water
● Matter
Chemistry vocabulary
Atom/element - any substance that cannot be decomposed into simpler substances by
ordinary chemical processes, typically represented on the Periodic Table
Compound - any substance consisting of atoms of two or more chemical elements
Covalent bond - the sharing of one or more pairs of electrons between two atoms
O)
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