Chemistry Blog page (;

So this blog is going to be about chemistry, tutorial type of information understanding the basics of chemistry. Its to help anyone in need, hope you guys find this helpful!!!

Naming and Understanding covalent and ionic compounds. (metals and nonmetals)

You are probably one of those people who have a hard time trying to figure out how what's the differences between covalent or ionic from it's formula. Well I want to teach you a fast and easy way to  name them without stressing over it! Also how you will find the nonmetals and metal elements.

There is two types of covalent formulas.
*Nonmetal which is covalent
*ionic which is a nonmetal and a metal put together.

How to find out which elements are metal or nonmetal??
Well really easy you just look at a periodic table.

Here is a periodic table with nonmetals and metal elements.
























You probably notice a group in the middle that is called "metalloids"which means that they are chemical elements that have a mixture of both metal and nonmetal which  they are hard to classify the elements. Even then they are still used in the chemistry literature.  

Now that you know where the nonmetals and where the metals are you're ready to start naming ionic and covalent formulas.


FOR EXAMPLE:
SO2 ~> since sulfate is a nonmetal and Oxygen is a nonmetal it will be a covalent formula.
Na2O ~> Sodium is a metal and Oxygen is a nonmetal so that makes the formula ionic.

Chemstry Reaction Lab

     In our chemistry class we were given a lab on chemical reactions. We had to do eight reactions from five different categories which were synthesis, decomposition, single-replacement, double-replacement and combustion.
     If you do not know what this categories are here are the meanings:

Synthesis: Makes or creates two or more substances joined together to make a third thing.                
                     General form: A + X -> AX

Decomposition: To take apart or break down.(substances is broken down into two different substances.)
                   General form: AX -> A + X

Single-Replacement: An element replaces a similar element in a compound usually take place in aqueous solution.
                    General form: A + Bx(aq) -> Ax + B

Double-Replacement: Ions of two compounds that changes places. Usually takes place in aqueous solution. one product is usually soluble (aq) and the other forms such as gas or sometimes water.
                                General Form: Ax(aq)+ BY(aq) -> AY + Bx

Combustion: A substance( usually hydrocarbon) combined with oxygen releasing a large amount of heat and light.
                A complete Combustion: Hydrocarbon + Oxygen -> Carbon dioxide + water  
                                                        C3H3 + O2 -> CO2(g) + H2O(l) + Energy

                  Out of all the reactions my group completed my favorite reaction was Double-Replacement. It was really easy to complete and it had a fast reaction. This is how I did it:

1.Measure 10 ml of Iron Sulfate into a beaker.
2. Measure 1 teaspoon of aluminum metal. Set aside
3. Now drop the aluminum metal into the iron sulfate beaker and wait around 2-4 minutes to see the reaction of the chemicals.

The reaction should create some sort of bubbles or white liquid at the bottom of the beaker. That is because the iron sulfate is dissolving the aluminum metal.

Thanks for reading!