Kylie Sharron Mr. Van Ness Chemistry Honors Period 4 23 November 2015 Engendering Extreme Frustration in Sophomores: Double Replacement Reactions Lab Background Information: A double replacement reaction, also called a double displacement reaction, is a type of chemical reaction in which two compounds react, and the anions and cations of the two reactants switch places to form two new compounds (products). A general equation for a double replacement reaction would be: AX + BY → AY + BX, along with any states of matter subscripted after each compound. Simply put, a double replacement reaction is the exchange of positive ions, or cations, between two compounds to form two new compounds. A precipitation reaction is a double replacement reaction in which two aqueous reactants …show more content…
Any reaction that begins with reactants both composed of cations and anions, and these anions switch cations in the products, it is a double replacement reaction. In order to decide whether or not a double replacement reaction occurred in the chemical reaction, a precipitate and/or a color change would be indicative. These changes show that the initial compounds have been manipulated in the reaction. One should look for these changes as evidence in order to determine the type of reaction taking place. Many hazards are associated with chemicals in this lab. Most of the chemicals used are irritating when they come in contact with your eyes, skin, or body tissues. Some chemicals are more dangerous, and can be corrosive to your body tissues. In one case, a chemical, when combined with any acids, can produce a toxic gas. In order to protect against these hazards, one must wear safety goggles throughout the entire lab as well as when cleaning up after the lab. Also, one should avoid contact with the chemicals and use extreme caution when handling each of the
The physical characteristic for this reaction is that the colour changes from purple to colourless.
There are three risk levels (low, medium and high) associated with sterile compounding. CSPs are assigned a risk level based on the probability of contaminating the preparation during compounding with microbial contaminants e.g. spores or endotoxins and chemical and physical contaminants e.g. skin particles from staff or broken glass. Once a CSP is classified, a licensed healthcare professional overseeing the sterile compounding can then decide upon the most suitable procedure and environmental quality of the facility which are necessary for preparing the CSP. The risk levels apply to the quality of the CSP d...
More than 375,000 nail technicians face possible health hazards everyday (“Health Hazards”). Today’s salons are investing in the latest products. Sanitation is the most important in any salon to prevent disease or injury to cosmetologists and for clients. The ingredients in these hair products are becoming stronger for some clients to handle. Cosmetologists need to understand how to keep ourselves and our clients safe. Tools, implements, and cleaning furniture is the most important. Customers are always going to be coming in and out of the salon. Cosmetologist will not always know who the person is in the salon. Wash and sanitize your hands before and after a client. Wearing personal protective equipment (PPE) will also help prevent disease (Frangie). To prevent disease and bacteria, cosmetologists need to sanitize the tools and furniture before and after they give a service to a client.
→ Wear clean lab coats; for additional protection in the hood use a fresh, closed front lab coat with gloves that overlap the cuffs. Protective eyewear should be used when appropriate. Lab coats used for cell culture should not leave the cell culture area.
If all this is done, we can ensure that we will get an accurate reading. Safety I will always wear safety goggles to avoid chemicals going into my eyes. All coats, bags and stools must be kept away from the area. Hair is to be tied back and ties tucked away at all times. GRAPH The practice experiment turned out rather well, and the results are similar to that of the other two experiments I carried out after.
Safety standards for all laboratories should be designed to eliminate risks due the use of potentially dangerous materials. All laboratories contain some form of potential hazards, and the actions and attitudes of those working within the laboratory are who sets precedence of their safety and others surrounding them. Their actions can also effect not only the laboratory but the community that surrounds the location. The manual identifies the biological agents that are used within the laboratory, and points out the exposure mechanisms of these biological agents. It includes the methods of evaluation and control of the biological agents, and covers the methods of sampling biological agents.
Some are life threating while others are minors. For instance, one of the most dangerous would be exposure to blood, body fluid, and tissues. It is the most dangerous because if the MLT has a rip in her gloves she touches the specimen she would be contaminating it and she would not get the proper result. Also the specimen may contain infectious agents which can cause very threating to the MLT health.
The purpose of this lab is to stay safe no matter what you're doing in
Nuclear Reactions is a process altering the energy, structure, or composition of atomic nuclei. In a reaction two nuclei or nuclear particles collide to produce a completely different product than the original nuclear particles. Although this is exceptionally rare occurrence a principal reaction includes 2 particles colliding. In most cases the particles will just collide and separate, this process is known as elastic collision, which is not a nuclear reaction. Confused with and similar to the Nuclear Reaction, a Chemical reaction only involves the atoms electrons. In an actual Nuclear Reaction only the atoms nucleus is involved.
== == I completed a table to show my results, here is the table: Table 1. Results of different changes of substances Part A Copper (II) Sulfate and Water Reactant description Water (reactant): Color: Colorless Transparency:
Safety is definitely not something to be cast aside so quickly as working with plants can be very dangerous. One should make sure to have the proper equipment before working with any kind of plant. For protection a person should have a pair of dragon-hide gloves, earmuffs, and a wand. A quick checklist of everything needed should always be gone over before beginning any type of handling with the plants. Also, while working in the lab you should access to a copious supply of dittany, wear closed toe shoes, an apron, and a mask if necessary. Failing to have the proper safety equipment can cause irrevocable damage and it is shocking how frequent accidents happen just by not having the proper equipment.
...s and hoses, control buttons, switches, hand pieces, and X-ray units (Collins). After every patient’s visit, the operatory is to be sterilized and disinfected. All areas that were that were not covered with a barrier, or if the barrier was compromised, must be wiped down with surface disinfectants similarly used in hospitals. OSHA requires disinfectants to be potent enough to fight against HIV and HBV infections (Collins). If there is any blood present on a surface, tuberculocidal type disinfectant should be utilized.
The biosafety program ensures the competency of the laboratory staff in safely performing their job through training and documentation of technical expertise. The laboratory staff must manifest professional responsibility for management of research materials complying with appropriate materials management procedures. A hallmark of biosafety practices requires laboratory access to be limited to essential personnel only when work with biological agents is in progress. Biosecurity practices on the other hand ensure that access to the laboratory facility and biological materials are limited and controlled. An inventory system must also be in place so as to control and track biological stocks or other potentially hazardous biological agents in both biosafety and biosecurity programs. For biosafety, the transfer and shipping of infectious biological materials must comply with safe packaging, containment and appropriate transport procedures, while biosecurity ensures that transfers are controlled, tracked and documented relative to the potential risks of the materials being transferred. Both programs must involve the laboratory staff in the development of practices and procedures that fulfills the requirements of biosafety and biosecurity initiatives without hindering research or clinical/diagnostic activities. The success of both of these programs is anchored on a laboratory culture
In the lab, several rules are in place to ensure a safe and productive experience for those who are working. For example, open-toed shoes, dangling jewelry, food and drinks are prohibited in the lab to prevent both accidental injury of the students as well as potential damage to the lab equipment.
Chemical hazards are either inhaled or absorbed through the skin or both. It may cause illness to some workers who are sensitive to the chemicals such as skin irritation or respiration problems. Chemical hazards mostly happen in laboratory and factory.