Chemical Reactions Lab

The experiment is to observe a variety of chemical reactions and to identify patterns in

Procedure: In this experiment, various chemicals were mixed together, to determine a reaction. Using two drops from chemical 1 and two drops of chemical two, unless otherwise stated, then recording the type of physical reaction or color changes that occurred.

It is a chemical reaction where the colors of both solution and iron strip changed. It is

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?

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 objective of this experiment will be to combine various substances, liquids and metals, and to observe their behavior when they are combined. The types of reactions observed shall determine the nature of these reactions: physical or chemical.

Growing up in suburban Detroit, David Hahn was fascinated by science. He often conducted experiments in his basement and enjoyed making things such as homemade fireworks, brewing moonshine, and even making his own self-tanning lotion. Hahn especially loved chemistry and spent much of his time doing amateur chemistry experiments. The chemical reactions in these experiments sometimes went wrong and resulted in small explosions. We learned about chemical reactions in class this semester. He loved to read “The Golden Book of Chemistry Experiments” that his father had given him and tried to collect samples of every element in the periodic table, including the radioactive ones. We learned in class about the elements in the periodic table and how they are identified.

There was an assortment of different changes indicating that chemical changes were taking place such as change in color or chemicals bubbling when combined with another chemical.

Purpose: The purpose of this experiment is to observe a variety of chemical reactions and to identify patterns in the conversion of reactants into products.

A chemical reaction is a process in which elements or compounds react with one another to create new or different substances. There are two parts to a reaction. Those two parts are the products and the reactants. The reactants are the chemicals or chemical compounds that are going through the reaction itself. The products are chemical elements or chemical compounds that are produced as a result of the reactant or reactants reacting. There are four key indications that there’s a chemical reaction is taking place. Those four signs include a change in color and/or odor, formation of a precipitate or a gas, the release or absorption of energy (light, heat, electricity), and if the reaction is irreversible. Along with this information, there are ways to predict the products of a reaction.

In the hypothesis it was predicted that the Glucose (C12H12O6) would react with the water in the presence of a catalyst, which would speed up the rate of reaction. In this reaction Glucose would react with water to produce Carbon Dioxide (CO2) and Water (H2O). Methylene blue was an indicator that turned blue as it reacted with the Oxygen in the water. In a perfect case scenario, the dissolved oxygen in the water would cause the Methylene blue to turn blue. As the reaction takes place, the oxygen is consumed in the reaction as glucose is oxidized to form carbon dioxide and water thus, turning the solution colorless. As the flask is mixed, the oxygen is dissolved back into solution therefore converting the color from colorless

As a child, I loved watching the colors change, but as I got older, I yearned to understand why they changed. This mindset and the interactive experiments I conducted immersed me in the wonders of chemistry.

One day he was taking some chemical samples out of the furnace. "I saw this vivid, intense blue," he say. "I was shocked. I'd never seen anything like it from mixing these chemicals." The bright-blue substance is now a new pigment.

This report expresses five different pigments that were formed during chemical reactions. Three out of the total five reactions went through a metathesis, or double-replacment reaction. A metathesis reaction can be defined as “a chemical reaction in which an element or radical in one compound exchanges places with another element or radical in another compound.” (Webster). The other two pigments underwent a neutralization reaction, which is “A reaction between an acid and a base that yields a salt and water.” (Webster). In both types of reaction two substances are being combined to form a new solution. The metathesis reaction produces a solution and a

CHAPTER 1 INTRODUCTION One might think that chemists are a bunch of boring scientists who wear lab coats and look at beakers all day, but did you know that many toys you play with are made using chemistry? Some of your favorite toys like Gak, Slime and Silly Putty started out as chemistry experiments. In fact, some of your favorite toys may have been invented by chemists who work for toy companies like: Crayola, Play-Doh