CHem REsearch TOpic

What are the different types of chemical changes and how are they used in real life?

This is my research topic. I decide to do this topic because I do not really understand what is chemical changes. It would also be interesting to know how they are used to benefit us in real life.

Prior to my research, I found out that other than chemical changes, there is also a physical changes. Let me define what is chemical changes. Chemical changes refers to bonds broken and new bonds formed between different atoms. The breaking and forming of bonds takes place when particles of the original materials collide with one another. Simply put, Chemical change is observed when the composition of a substance changes.

However, physical change is different to chemical change. Physical changes occur when objects undergo a change that does not change their chemical nature and only involves in changing of physical properties. Simply put, a physical change does not change the composition of a substance. An example would be water. Water in itself is in liquid form. However when it freezes, it state changes into ice. Though it state changes, when it melts, it turns back into water again. This shows that there is no change to the compositon of the water even though it state changes.

Having define what is chemical change and the difference between chemical and physical change, I have also researched on the types of chemical reaction briefly. I would be focus on the 5 main types of chemical changes, mainly synthesis, decompositon, single displacement, double displacement and combustion. I found a video on the the following types of chemical changes and hope you enjoy it.

Now after viewing this video, we now have a basic understanding of the types of chemical changes. But a lot of questions are left unanswered. How did the two substances reacted with each other? Why did they react like that? My next post, however, will try to answer questions asked on synthesis.