Chemical substance

of Timothy Chase Willard and Marcus Bortey of Mr. Cork’s Second Period chemistry class December sixteenth of 2014  Background Information An emulsion is a mixture of two or more chemicals in liquid form with no mutual solubility. Emulsions are part of two-systems of matter called colloids. Colloids are particles that cannot be seen without the use of a microscope, but are larger than the size of the individual molecules involved in the emulsion. Usually the combination of a water, or water like substance and a oil, or lipid based substance together. The mixture is mixed thoroughly, usually by means of mechanical force, like shaking, forming a solution, resulting in a homogenized solution.…

To identify the unknown substance using physical and chemical property skills to figure out the correct suspect and retrieve the missing necklace. Question: How can the detectives successfully identify the correct suspect using physical and chemical properties? Hypothesis: If identifying unknown substances, using the chemical and physical property skills knowledge learnt, the unknown substance can be further be analyzed in contrast to other evidence to prove the innocence or conviction to…

A top score must be kept of any materials deposited in the laboratory and in what way the chemical can be hazardous to health. The procedures for storing and handling the chemicals are shown to staff and then stored on a LIMS. This is important because you have to ensure sure awareness of health and safety issues with substances being used in the organisation. A record of any events that involved chemicals causing harm to staff should be kept. Chemicals that are hazardous to health are firstly…

This particular lab will focus on separating the components of a ternary mixture, which is a mixture that contains three substances. Both physical and chemical methods are available for separating the components of a mixture. Physical methods use differences in the physical properties of components of a mixture, while chemical methods involve the selective reaction of one of the components of a mixture to form a new substance. In this experiment, five methods of separation will be used:…

Marijuana is one of the substances that has gotten a ton of consideration in people in general space in the late years. This is a result of the level headed discussion that it has pulled in over its utilization. Weed is one if the illicit substances that is being utilized by a few people for various reasons. A few people utilize the Maryjane for amusement, while others utilize it for medicinal purposes. There has been a critical number of strengths upholding for the legitimization of the weed.…

AND HAZARDS PHYSICAL PROPERTY BENZHYDROL COLOR/TEXTURE White, fine crystals or dry powder ODOR Odorless BOILING POINT 297-298 °C MELTING POINT 65-67 °C DENSITY 1.31 g/mL HAZARDS SKIN, EYE, AND RESPIRATORY IRRITATIONS Irritation FIRE HAZARD Combustible is high temperature TABLE I: Table of physical properties and hazards of benzhydrol. PROCEDURE AND OBSERVATIONS ¬ FINDING MELTING POINT OF UNKNOWN SUBSTANCE: We used a micro spatula to retrieve unknown substance MP-14 from…

The melting point of a substance is best described as the temperature at which a solid becomes a liquid (Bruice 2014). On the molecular level, when a compound melts the forces between the molecules become weaker. This is because when a substances heats up the kinetic energy between the molecules increase causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and…

Discussion and Scientific Explanations The main goals of this experiment was to find the unknown compound, to discover the compounds chemical and physical properties and create two synthesis of the compound and compare the two compounds. We found out our compound was ionic because the compound dissolved in water, but not in toluene or acetone by using a solubility test, results on Table 1 of the group lab report. On page 59 of the Cooperative Chemistry Laboratory Manual is a chart on suggested…

¨All Mixed Up!¨ Purpose: To separate out four components of a mixture using their unique properties in order to better understand matter: substances vs mixtures and their definitions as well as to better understand phase changes as well as physical vs chemical change. Materials: -Beakers -Graduated cylinder -metal screen -tongs -ring stand -bunsen burner -ring -wire gauze -hot plate -crucible -clay triangle -balance -magnet -stirring rod -plastic bag -paper towels…

discovered to contain toxic chemicals known as C8. Despite the many side effects that C8 had on lab animals during the testing phase, DuPont continued to manufacturer its products using the chemical. In spite of all the concerns raised by both its workers and inhabitants regarding the safety of the chemical, the company took no action to prevent these harmful substances from its customers or employees. Many individuals began to become affected both health wise and even economically. Women who…