Lab: Electrolysis In Action

After 15 minutes, the iron strip was corroded (its color was reddish brown), and the color of the solution slightly changed to green.

The purpose of this lab is to test substances and to determine the physical and chemical properties of substances.

A chemical reaction is when substances (reactants) change into other substances (products). The five general types of chemical reactions are synthesis (also known as direct combination), decomposition, single replacement (also known as single displacement), double replacement (also known as double displacement), and combustion. In this lab, the five general types of chemical reactions were conducted and observations were taken before, during, and after the reaction. Then the reactants and observations were used to determine the products to form a balanced chemical equation. The purpose of this lab was to learn and answer the question: How can observations be used to determine the identity of substances produced in a chemical reaction?

One type of chemical reaction, called combustion, involves the burning of various compounds and elements. Some substances are more

When the two smaller reactants join together, water is produced and removed during the synthesis of the larger molecule. This is also called Dehydration Synthesis.

In this experiment you will observe some physical and some chemical changes. You will observe that energy must be used to start some chemical reactions, and that it is produced in others.

The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter.

37. Chemical formulas are written so that the charges of cations and anions neutralize (cancel) one another.

For example, in the experiment when I poured Hydrochloric acid in a test tube and then one magnesium ribbon, the substances started to bubble. Other than that, when I took the wooden split and lit it, I burned the green paper and it changed brown around the edges of the paper.

The purpose of Experiment 6 - Part 1, was to use electrophile addition to synthesize 1,2‐dibromo‐1,2‐diphenylethane from (E)-1,2-diphenylethene. The final product was correctly identified by the use of TLC and melting point determination. The final product was meso-1,2‐dibromo‐1,2‐diphenylethane. Figure 1. Reaction for Experiment 6, Part 1. Created by Chem Doodle.

Chemical reactions make new things by rearranging other things. In a chemical reaction, the main change that occurs relates to the way atoms are bonded to each other, in order to change those connections, bonds must be broken and new bonds be formed.

When dealing with chemical reaction there are equations called chemical equations. Chemical equations give the reactants and products of a chemical reaction. When given just the reactants of an equation, you can predict the products by balancing each side of the equation. The products and reactions are separated by an rnx arrow

Air pollutants such as chloride and sulfate, if present in the atmospheric moisture penetrate the rust layer and create an anode channel for local corrosion. As the anodic metal dissolution progresses, the chloride and sulfate ions tend to accumulate in the anode channel where the aqueous solution acidifies. The concentrated ferrous chloride ions at 1 mol dm−3 solution acidifies the solution at pH 4.75, where no ferrous hydroxide is allowed to precipitate in the solid state because of its solubility greater than 1 mol dm−3. Hydrated ferrous chloride,[Fe2+aq +2Cl−aq], dissolved in local corrosion then gradually air-oxidizes and precipitates into ferric hydroxide rust in the anode channel, simultaneously producing hydrochloric acid[H+aq+Cl−aq]. 4[Fe2+aq

The start of the experiment consisted of filling up four beakers with de-ionized water to 150 ml. After the beakers were filled to the appropriate amounts they were then labeled with the

Discussion:There were 4 test tubes/cups but only 3 had the chemical reaction happen to them they were the distil liquid cup, also the calcium chloride cup and finally the salty water cup and the liquid that didn’t make the metal nail rust was the oil contained cup.The distilled water had the most rust and under that was the salt water which was just as rusty as the distilled water but it wasn’t as rusty as well so that's why salty water was ranked under the distilled water and under that was the calcium chloride because it was less rusted and under that was the oil because the oily nail didn’t rust at all.If rust had to occur it would need 3 mains things,1.H₂O (Water),2 Oxygen and lastly you would need to obviously wait.Rust forms when water