Lab report physical and chemical changes

Patterns Connecting to the Essential Question: Concentrated hydrogen peroxide is very hazardous. See appendix A The U. Silver nitrate is a chemical method of cauterizing vessels to stop bleeding. Eventually, when the beaker gets quite hot the condensation will go away.

When silver nitrate gets onto the skin, then exposed to ultraviolet light the sunit will turn the skin black. Why might the Department of Defense be so committed to downplaying the nature of the events which may have caused illnesses being suffered by many Gulf War veterans.

According to a knowledgeable source, the Czechs believed that the detections were caused by the weather inversion which occurred that day January 19, as the weather front moved southward.

Hoping to avoid responsibility for the casualties of this conflict, however, is quite another matter. Ekeus claimed that some warheads found were already fitted onto the SCUD missiles.

These materials are, according to the source, stored in the lipids body fats and have no known antidotes. Its smell, generally characterized as the strong smell of geraniums, could be confused with the smell of ammonia the reaction to which is regulated by pain fibers rather than smell. Deutch admitted that biological agent detection is a priority development area for the Department of Defense, since there currently is no biological agent detection system fielded with any U.

Chemical Changes with Calcite Adding an acid to a compound and observing bubbles is a indicator that your compound has the carbonate CO ion. As a result, the cells of the nervous system, especially those affecting breathing -- are injured, which in turn leads to quick death.

This opened a door for brewers to supply their own town with alcohol. According to the Chicago Tribune, which interviewed officers and enlisted Marines involved in the operation, a FOX vehicle confirmed positive readings for a nerve agent and for a mustard gas.

Heroin[ edit ] Similarly, heroin-producing countries depend on supplies of acetic anhydride AA from the international market. We now know that these disorders, in many cases, are being spread to family members.

Our enemies surely know the extent of our vulnerabilities. Get Access Lab Report: Inspecting Equipment, Structures, or Material — Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.

What is the source of the bubbles. Then add purified water to fill the test tube about half way. Students may offer things such as color, texture, reactivity with acid and ionic bonds. Many members of units who had close contact with these individuals are now reporting to the Committee symptoms consistent with those being suffered by other Gulf War veterans.

It is important that student lab reports are evaluated not on whether or not a physical or chemical change is correctly identified, but by how successfully they defend their conclusions based on the observations they made in lab.

Examine the residue in the evaporating dish and on the filter paper. If you wish, you can copy the below summary into your email or Word document and type your answers after the descriptions.

Synthetic diamond

Suppliers of precursor chemicals[ edit ] Chemicals critical to the production of cocaine, heroin, and synthetic drugs are produced in many countries throughout the world.

This is useful in helping to identify compounds in forensics and geology.

Liquid Oxygen

Exposing the silver chloride produced by this reaction to sunlight or an ultraviolet lamp causes the silver chloride to be reduced to metallic silver, making the latent prints visible as black or dark gray traces.

Then place a few drops of the silver nitrate into the sugar solution and report what you see.

U.S. Senate Committee on Banking, Housing, and Urban Affairs

The health assessment in that report is based only on an exposure limited to the concentrations of the Sarin GB detected by the Czechoslovak chemical detection unit 0. The silver nitrate on the fingerprints has to be exposed to UV light for it to turn dark.

After filtering, remove the filter paper with tongs or tweezers, and save it on a paper towel labeled with your names. Citing unidentified individuals, the radio reported that the banned weapons were being hidden in the oil pipelines that have been "out of operation because of the international embargo.

Dispose of the mixture in a plastic-lined wastebasket. Defense Department officials, having had possession of the Czech report for over a month, were at a loss to explain the chemical mustard agent detected by the Czechoslovak chemical detection team in the Saudi desert near King Khalid Military City on January 24, The effects are reversible after reduction of oxygen pressure.

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Department of Commerce that were used to further Iraq's chemical and nuclear weapons development and missile delivery system development programs. Within this downwind area, friendly military units would have to take protective measures. This is similar to what the TDS meter does lab 2except the test with silver nitrate is more specific to common chloride salts like sodium chloride and calcium chloride.

Chemical Equilibrium Lab Report Aim: The aim of the lab “Chemical Equilibrium” is to observe the effects of changes in concentrations of products and reactants on the position of the equilibrium of given chemical reactions.

Summary Report for: - Chemical Technicians. Conduct chemical and physical laboratory tests to assist scientists in making qualitative and quantitative analyses of solids, liquids, and gaseous materials for research and development of new products or processes, quality control, maintenance of environmental standards, and other work involving experimental, theoretical, or practical.

At each lab station, students not only identify the signs of a chemical change, but they also read reactant and product descriptions in order to identify changes in chemical and physical properties that occurred. 10/21/–Idaho State Police Forensic Services has recently received a number of important federal grants.

These federal grants play a huge role in the laboratory system remaining one of the most efficient, productive, and progressive forensic laboratories in the country. EH&S: A Division of Business Affairs, BuildingNewell Drive, PO BoxGainesville, FL Phone () Fax () Lab 4: Chemical and Physical Changes Humans having a desire to classify things so they are more understandable.

The Periodic Table of the Elements grouped elements according to their increasing mass (a physical property) and by columns (similar chemical properties).

Lab report physical and chemical changes
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HASPI Curriculum