Chemistry Reflection

In this unit I  learned a lot about chemistry. For example I learned that there are two different ways for atoms to bond, ionic and covalent. When two atoms form an ionic bond one atom gives electrons to the other atom and in covalent bonds atoms share electrons. You can tell what elements can bond by looking at a Lewis dot Diagram. Also, the periodic table of elements is organized according to the atomic number and what families the elements are in. Atoms are made of neutrons, which have a neutral charge, electrons, which have a negative charge, and protons which have a positive charge. I also learned that there are negative ions called an Anion and a positive ion is called a Cation. There are two different types of solutions: Colloids that have small undissolved parts of the solute and suspensions that can be separated by a filter. Also, I learned a lot about acids and bases during this unit. A reaction with a acid releases hydrogen, so each chemical equation begins with the atomic symbol for hydrogen which is H. When bases dissolve in water you can separate positive and negative ions and the chemical equation always begin with OH (oxygen and hydrogen). To tell if something is an acid or a base you measure its pH level. If it is high it is a base, and if it is low it is an acid. You can use litmus paper or cabbage juice to measure pH. I really enjoyed studying bonding the most and found it very interesting. In conclusion I thought this unit was very interesting and I learned a lot about Chemistry.