Archive for the ‘Chemistry Blog’ Category
CHEMISTRY HELP THAT WILL RAISE YOUR CHEMISTRY GRADES
Everyone should take chemistry. It is important and it is a lot easier than you think. Most people do not need chemistry help. But there is a lot of chemistry help out on the internet for those who do. There are chemistry videos, chemistry help for homework, and chemistry blogs.The hardest part of chemistry is realizing that you just have to memorize some stuff. It may never make sense to you, but if you can memorize it you can then figure out other stuff. For example, memorize "protons are positive" and "like repels like". Then you can answer "do protons repel each other and if so why?" The answer is "'protons are positive' and 'like repels like' so positive protons repel positive protons."Many chemistry help .. more »
WHAT IS CHEMISTRY?
Put it simply Chemistry is the study of matter and the way matter changes.The word Chemistry comes from an ancient Egyptian word khemeia. Khemeia was an Egyptian art which occurs in various Egyptian groups that was connected to mummification. Later along the history, its practices included things such as dyeing, metallurgy and glass making.Although the ancients knew of copper, silver, gold, tin, lead, iron, carbon and sulphur, they did not know that these are elements. To them, they follow the teachings of the 5th century BC Greek thinker and philosopher Empedocles and popularized by Aristotle. To them, matter was made up of four elements - the earth, air, fire and water. To them this classification made sense because after all, earth is not a solid, .. more »
WHAT IS CHEMISTRY
Chemistry is the science of substances, or materials, their composition and characteristics, and the reactions which take place between those substances. It is concerned with chemical elements in their pure state and when they are combined, that is, reactions of these elements and the compounds which they form. The scientist who wants to do chemistry must first be able to understand its building blocks, substances in their pure state. Only then can the chemist use that knowledge to comprehend more complicated phenomena, and begin to perform his own experiments.Every chemical reaction can be represented with the help of atoms and molecules. It was necessary, therefore, to develop a special system of chemical symbols. Substances in their pure state, called elements, were sometimes named after the .. more »