Chemical Reaction Lab Report 2013

Combustion Reaction: A chemical reaction between a fuel and an oxidizing agent that produces heat.

* When we burn hydrocarbon fuels in the air the carbon and hydrogen in the fuel are completely oxidized. They produce carbon dioxide and water.

In a combustion reaction, a compound or element reacts with oxygen, releasing a large amount of energy in the form of light and heat.

When calcium chloride, sodium bicarbonate, and phenol red are put into a bag and mixed up the type of reaction that occurs is a chemical reaction for the following reasons. Things that indicate that a chemical reaction has occurred are color change, formation of precipitate, formation of gas, and energy transfer in which three of them took place in the reaction of calcium chloride, sodium bicarbonate, and phenol red. The three indicators in this experiment were: a color change, formation of gas, and an energy transfer

Purpose: The purpose of this lab is to further observe four types of chemical reactions. This lab will show four types of distinct chemical reactions and will increase my knowledge on each type.

What is the percentage yield of the reaction of iron and copper chloride when steel wool and copper chloride dehydrate are used as reactions?

Chemical, as well as physical reactions are key factors in the study of Biology. Reactions have many different forms including reaction times, products, reactants, etc. This laboratory experiment aimed to allow students to become familiar with oxidation reactions and enzymes. Enzymes are proteins that are used to enhance the rate of reaction. Without enzymes the reaction time will be a lot longer than that with the enzyme, therefore making the use of enzymes essential to students who are completing a laboratory experiment in a short period of time or even scientists/chemist/biologists also completing experiments.

During this particular lab there were various chemical reactions that we had to observe and describe with much detail. In “Part One” of the lab we continued to mix various substances, and then noted descriptive characteristics such as smell and color. This particular portion of the lab was interesting because each mixture lead to a unique reaction. For example, after we mixed the substances “E” and “F” the final substance smelled similar to wood, but this did not occur in any of the other final solutions. Therefore, this part of the lab allowed us to experience a wide range of chemical reactions, which caused an assortment of changes. This aspect of the lab does need to be improved because it was an insightful experiment that forced each student

In 1937, Robert Hill isolated chloroplasts and demonstrated that chloroplasts can give off oxygen in the absence of CO2. The presence of an electron acceptor, 2,6-dichlorophenolindophenol, otherwise known as DCPIP, will turn from a blue color to clear when electrons have been accepted. This artificial electron acceptor intercepts electrons before those electrons reach PS I. Based upon this chemical feat, this will allow for the measurement the absorbance of 600nm wavelength of cuvettes containing free chloroplast reactions at various conditions, such as the effects of uncouplers (Ammonia), herbicides {3-(3,4-dichlorophenyl)-1,1-dimethylurea} (DCMU), light color, and distance from light. Using the isolated chloroplast, sodium chloride buffer, and the artificial electron acceptor, these manipulations will be carried out and the rate of the reaction measured using a spectrophotometer. The results expressed both the uncoupler and herbicide decrease reaction rate, 30 cm away from a 60 watt light bulb is prime for fast reaction rate, and green light demonstrated the fastest reaction rate.

Combustion is one of the five major chemical reactions that takes place. Usually, combustion occurs when a hydrocarbon (a compound formed of only bonded carbon and hydrogen atoms), reacts with oxygen gas to produce carbon dioxide and water (Helmenstine 2017). In the most basic terms, combustion occurs when any combustible material reacts with oxygen gas, yielding a product of water and carbon dioxide. The general equation for a combustion reaction can be written as; [hydrocarbon + oxygen → carbon dioxide + water ] . When a combustion reaction takes place, Combustion is labeled as an exothermic reaction, meaning that it releases heat energy.

I was hired to be a new chemistry teacher at the Forest Grove High School. When I got

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?

The main thing in natural gas is methane. Millions of years ago, decaying remains of

Hydrocarbons are molecules made from only carbon and hydrogen. Carbon atoms are able to form long chains (concatenate) because they form very strong bonds with each other. With this in mind, we can utilise fossil-fuel derived hydrocarbons 4-12 carbon atoms long (commonly known as petroleum, or petrol) in combustion engines because when we combust (burn) these, all this energy is given out in a very rapid and highly exothermic reaction.

The fossil fuels contain high percentage of carbon and include coal, oil, and natural gas, are the major source of energy that power our modern society. Fossil fuel range from low carbon to hydrogen ratio like methane, to liquid petroleum, to almost pure carbon like coal. Petroleum, such as natural gas and crude oil, contains a mix of hydrocarbons. Hydrocarbon deposits underneath the earth surface, such as oil and natural gas, is search by petroleum geologist and geophysics, called hydrocarbon exploration and oil exploration.