Journal Entry 3

What is an oxide, a hydroxide and a carbonate?

a) An oxide is a chemical compound containing at least one oxygen atom as well as at least one other element. Most of the Earth’s crust consists of oxides. Oxides result when elements are oxidized by oxygen in air.

b) Hydroxide is a common name for the diatomic anion OH, which consists of oxygen and hydrogen atoms.

c) Carbonate is salt or ester of carbonic acid. To know of the presence of a carbonate in a salt, the addition of a dilute acid e.g. hydrochloric acid will show  carbon doixide (gas).

Journal Entry 2

Today, I completed the table of reactions that we did last lesson. I recorded my results, and added the results I did not record. This gave me a good idea on how to conduct experiments, the safety precautions and safety gear required. Doing these experiments to observe the reactions gave me a real life experience of these reactions, what they look like and how to identify them.

Journal Entry 1

This lesson was very important to the understanding of this project. We learnt on how to recognise whether a chemical reaction is occuring or not. We learnt the things that can be seen to know whether or not a chemical reaction is occuring. This is very important in this project, as without being able to recognise a chemical change, it cannot be identified and researched. This lesson I have learnt, shered and listened to the different views of recognising chemical reactions. Some of the chemical reactions I learned about are:

1. Metal deposits on metals