Can anyone help me check my classifications of these into metallic, ionic, molecular or covalent network, and if I am wrong tell me why
Aluminum - Mettalic
Ascorbic acid - ionic
Graphite - covalent
Paraffin - molecular
Palmitic acid - ionic
Sodium chloride - covalent
Sucrose - molecular
Water - ionic
Thank you
Ok. Molecular usually means weak covalent intermolecular bonds, such as in waxes (read paraffin)
Aluminum - Metalic
Ascorbic acid - covalent, sometimes called molecular
Graphite - covalent...maybe, but it is a often a very imporant type of covalent, called network solid. Look that up. Diamonds are network solids.
Paraffin - molecular covalent.
Palmitic acid - in solid, it is a fat, read weak covalent intermolecular
Sodium chloride - ionic
Sucrose - covalent
Water - hydrogen bonds...look that up. but in the molecule itself, covalent.
There are many ways to classify bonds, all have one thing in common: how are electrons shared. Frankly, the dividing lines into these categories is often fuzzy, as there may be more than one type. Generally, when exploring these you look at physical characteristics, hardness, vapor pressure, physical state (solid, liquid, or gas), and how it crystalizes in the solid state. I would not worry if you think you don't have this down pat.
ice --> serious hydrogen bonds :)
Let's go through each compound and determine its classification as metallic, ionic, molecular, or covalent network.
1. Aluminum - Metallic
Aluminum is a metal, so it is classified as metallic.
2. Ascorbic acid - Molecular
Ascorbic acid (vitamin C) is a compound composed of carbon, hydrogen, and oxygen atoms connected through covalent bonds. Therefore, it is classified as molecular.
3. Graphite - Covalent Network
Graphite consists of carbon atoms that form a three-dimensional network held together by strong covalent bonds. It is classified as a covalent network structure.
4. Paraffin - Molecular
Paraffin is a hydrocarbon compound consisting of carbon and hydrogen atoms connected by covalent bonds. It is classified as molecular.
5. Palmitic acid - Molecular
Palmitic acid is a fatty acid composed of carbon, hydrogen, and oxygen atoms connected by covalent bonds. It is classified as molecular.
6. Sodium chloride - Ionic
Sodium chloride, commonly known as table salt, is formed by the ionic bonding between sodium (Na+) and chloride (Cl-) ions. It is classified as ionic.
7. Sucrose - Molecular
Sucrose, also known as table sugar, is composed of carbon, hydrogen, and oxygen atoms connected by covalent bonds. It is classified as molecular.
8. Water - Molecular
Water is composed of hydrogen and oxygen atoms connected through covalent bonds. It is classified as molecular.
Based on the above explanations, most of your classifications are incorrect. Here are the correct classifications:
Aluminum - Metallic
Ascorbic acid - Molecular
Graphite - Covalent Network
Paraffin - Molecular
Palmitic acid - Molecular
Sodium chloride - Ionic
Sucrose - Molecular
Water - Molecular
Remember that determining the classification of a compound depends on the types of atoms present and the type of bonding between them.