ChemSketch

ACD/ChemSketch Freeware is a drawing package that allows you to draw chemical structures including organics, organometallics, polymers, and Markush structures. It also includes features such as calculation of molecular properties (e.g., molecular weight, density, molar refractivity etc.), 2D and 3D structure cleaning and viewing, functionality for naming structures (fewer than 50 atoms and 3 rings), and prediction of logP. The freeware version of ChemSketch does not include all of the functionality of the commercial version.

The difference between ACD/ChemSketch and ACD/ChemSketch Freeware:

Option	Freeware	Commercial
ACD/Dictionary	No	Yes
Search for Structure in Different Computer File	No	Yes
Restricted Version of ACD/ChemFolder (SDfile Viewer)	No	Yes
Export to Adobe® PDF	Yes	Yes
ACD/Tautomers	Yes	Yes
ACD/Name Freeware	Yes	Yes
ACD/3D Viewer	Yes	Yes
ACD/I-Lab add-on for ACD/Labs Online	Yes [must be installed separately]	Yes
Instructions for Authors	Yes [must be installed separately]	Yes
Advanced drawing tools (polymers, Markush, reactions, and other features made available in versions 6–10)	Yes	Yes
ACD/Labs Extension for ChemDraw	No	Yes
ACD/ChemCoder 2D barcode capability	No	Yes
Technical Support	No	Yes

Source: http://www2.acdlabs.com/download/chemsketch/chemsk_tech.html

Here are the preview of the software:

For more information, you can click on the links provided below:
ACD/Labs.com
ACD/Labs.com (Freeware)
The Chemical Database Service
Chemsketch - An Introductory Guide

HyperText Markup Language (HTML)

Hi, there. Welcome to my new blog. This week assignment is HTML.Hope you enjoy....

HTML is a computer language devised to allow website creation. These websites can then be viewed by anyone else connected to the Internet. It is relatively easy to learn, with the basics being accessible to most people in one sitting; and quite powerful in what it allows you to create. It is constantly undergoing revision and evolution to meet the demands and requirements of the growing Internet audience under the direction of the W3C, the organisation charged with designing and maintaining the language.

The definition of HTML is HyperText Markup Language.

• HyperText is the method by which you move around on the web — by clicking on special text called hyperlinks which bring you to the next page. The fact that it is hyper just means it is not linear — i.e. you can go to any place on the Internet whenever you want by clicking on links — there is no set order to do things in.
• Markup is what HTML tags do to the text inside them. They mark it as a certain type of text (italicised text, for example).
• HTML is a Language, as it has code-words and syntax like any other language.

There are many websites out there who can show you how to use HTML. One of them in which my instructor recommended is W3School.Here is the links http://www.w3schools.com/. You can even practice yourselves through Tryit Editor provided by the website.You will be amazed once you try it.

Example of HTML

One important aspects in HTML is Colour Codes.Here I have attached pictures showing the colour with its code in HTML.You can click on the images to enlarge.

There are 16 of basic colour codes for an HTML Attribute:

Aqua	#00FFFF
Black	#000000
Blue	#0000FF
Fuchsia	#FF00FF
Gray	#808080
Green	#008000
Lime	#00FF00
Maroon	#800000
Navy	#000080
Olive	#808000
Purple	#800080
Red	#FF0000
Silver	#C0C0C0
Teal	#008080
White	#FFFFFF
Yellow	#FFFF00

A few sources that you can check:

Wikipedia

YourHTMLSource

HTML Toturial

Muhammad Moazzam Huyamun