Dissociation Reaction Definition and Examples

A dissociation reaction is a chemical reaction  in which a compound breaks apart into two or more components. The general formula for a dissociation reaction follows the form: AB → A B Dissociation reactions are usually reversible chemical reactions. One way to recognize a dissociation reaction is when there is only one reactant  but multiple products. Key Takeaways When writing out an equation, be sure to include the ionic charge if there is one. This is important. For example, K (metallic potassium) is very different from K (potassium ion).Dont include water as a reactant when compounds dissociate into their ions while dissolving in water. While there are a few exceptions to this rule, for most situations you should use aq to indicate an aqueous solution. Dissociation Reaction Examples When you write a dissociation reaction in which a compound breaks into its component ions, you place charges above the ion symbols and balance the equation for both mass and charge. The reaction in which water breaks into hydrogen and hydroxide ions is a dissociation reaction. When a molecular compound undergoes dissociation into ions, the reaction can also be called ionization. H2O → H OH- When acids undergo dissociation, they produce hydrogen ions. For example, consider the ionization of hydrochloric acid: HCl → H(aq) Cl-(aq) While some molecular compounds such as  water and acids form electrolytic solutions, most dissociation reactions involve ionic compounds in water, or aqueous solutions. When ionic compounds dissociate, water molecules break apart the ionic crystal. This occurs because of the attraction between the positive and negative ions in the crystal and the negative and positive polarity of water. In a written equation, youll usually see the state of matter of the species listed in parentheses following the chemical formula: s for solid, l for liquid, g for gas, and aq for aqueous solution. Examples include: NaCl(s) → Na(aq) Cl-(aq)Fe2(SO4)3(s) → 2Fe3(aq) 3SO42-(aq)

Psychology Psychology And Psychology Essay - 784 Words

Since the time of psychology’s origins in the 1500 s where Leonardo da Vinci s stated that there might be a relationship between the human brain and a person s psychological processes, psychology history and research has grown tremendously over centuries. Some of the most important events in psychology includes: William Wundt creating the first psychology lab in Germany to the American psychiatric Association (APA) publishing the first Diagnostic and Statistical Manual of Mental Disorders (DSM). These events and many more have advanced the field of psychology, yet I found two other events in psychology history that caught my attention the most: G. Stanley Hall who established the first psychology lab in the United States at John Hopkins University and B.F skinner developing a theory called operant condition on animals through reinforcement and punishment. Both events are important to the growth of psychology. in the development of the discipline of psychology. One of the most significant event in US psychology was when G. Stanley Hall created the first psychology lab in the United States t John Hopkins University. The reason why this event was so significant was because Hall brought scientific research to the United States of America in 1883. Because of Hall’s psychology lab he was able to â€Å"begin to publish his own journal, The American Journal of Psychology, in the fall of 1887.(Bringmann)†. G. Stanley Hall was known for his work and interest in the historyShow MoreRelatedPsychology : Psychology And Psychology1627 Words   |  7 Pagescovers the many questions we may have about psychology. It starts with the history and how it has changed throughout the years. It covers some of the many subfields and jobs you can have as a psychologist. It also covers the four big ideas that are associated with psychology. There are many more topics and sub-topics that will be covered within this paper on chapter 1. Section 1-1 Psychological Science is born: This section shows how the heart of psychology changes over time. In 1879, at a germanRead MorePsychology : Psychology And Psychology Essay2200 Words   |  9 PagesHow is psychology defined today? How did psychology start out being defined originally? Humans have always been interested in understanding their own body, especially the brain itself. Some of the first people to explore psychology were Aristotle and Socrates, (even though some of the things they thought were wrong) of course at the time they did not know what exactly they were studying. https://www.boundless.com/psychology/textbooks/boundless-psychology-textbook/introduction-to-psychology-1/intrRead MorePsychology : Psychology And Psychology1519 Words   |  7 PagesPsychology has been defined by many as the study of mental disorder or behavioral problems but discoveries and developments, points to psychology as the study of human mind and its functionality which includes the way we think, act, perceive things and be able to make decisions; all these makes man a complex being. Psychology isn’t just a phenomenon; it is a scientific study. Psychology as a science answers the question â€Å"why†, proposes a theory and sets experiment to test the hypothesis. The researchRead MorePsychology : Psychology And Psychology1753 Words   |  8 Pagesbeing said, psychology is a very important branch of science that attempts to help us stay sane! Already getting started next year, I enrolled into a psychology class to get a jumpstart for when I go into college. I chose to enroll into the psychology class because the human mind is something that is very complex and diverse. By me taking this class, I am partially more ahead and more taught than that of a student who doesn’t take the class. And that way, when I get into the psychology major, I haveRead MorePsychology : Psychology And Psychology889 Words   |  4 PagesOne: Psychology Defined Psychology is an exceptionally multifaceted field of study, regardless, it can be commonly defined as the study of mental processes and human behavior. The goals of psychology are to describe, explain, predict and control the behavior of others. Psychology incorporates an extensive range of different perspectives into its general principles as well as focuses on securing them with applied research, case studies, evaluations, etc. I first became interested in psychology whenRead MorePsychology : Psychology And Psychology1018 Words   |  5 Pagesof psychology is common to talk about the psychological schools, as these are defined as groups of psychologists who shared a theoretical view and focused psychological problems with a common orientation; these have evolved over time. Psychology was first established as a separate science of biology and philosophy, that s when the real debate over how to describe and explain the human mind and behavior began start, different psychological schools represent the major theories of psychology. TheRead MorePsychology : Psychology And Psychology892 Words   |  4 PagesWhen you first think of the word psychology, what is the first thing that comes to your mind? Well, some people might say they don’t know or some would say it’s something that has to do with the mind and/or human behavior. Psychology which comes from the Greek term â€Å"psyche† is the study of mental processes and behavior; especially those affecting behavior in a given context. There are several schools of thought in psychology. These schools include: structuralism (Wundt), functionalism (James), gestaltRead MorePsychology : Psychology And Psychology1267 Words   |  6 PagesPaper What is psychology? What impact does psychology have on the world? What does it mean to be a psychologist? These are three important questions that will be investigated throughout this paper. Psychology is the scientific study of the human mind and behavior. Psychology influences many behaviors in the world without anyone noticing. Watson is interested in behaviorism. This means he was interested in the behavior of people and how they act and react. Through his article, Psychology as the BehavioristRead MorePsychology : Psychology And Psychology850 Words   |  4 PagesPsychology to me is meant to help people understand the complexity of other human beings. We have established the existence of many disorders which are mainly beyond the control of people because of chemical imbalances in the brain. Although with these reasons, we still have attached negative and positive connotations to many disorders. We have created this concept of psychology in order to help us try to find some sense of order in our lives. This can allow us to try rank ourselves next to anotherRead MorePsychology : Psychology And Psychology1300 Words   |  6 PagesIn Psychology There are six modern psychological perspectives. These perspectives are behavioral, psychodynamic, humanistic, cognitive, social, cultural, and biological. Each pe rspective has its own unique way of explaining human behavior. I think that really explains the complex mental processes and behavior, and each prospective study should not be limited to just one. The following is my explanation of the terms and comparisons between the psychodynamic and behavioral aspects relating to the October

Robbery Flight Attendant and Officer Free Essays

Robbery Tanisha Barkley, Desiree Brickles, LaTosha Call, Kimberly Clark, Robin Crumble, Tammara Dimond and Keith Dostie Everest University Introduction to Interviews and Interrogations Professor David Farrow March 16, 2013 Robbery Crime Scenario There was a diamond heist at Brussels Airport involving two suspects, one male and one female. The female had the diamonds hidden on her purse, when she passed through security. The male suspect was actually one of the pilots. We will write a custom essay sample on Robbery: Flight Attendant and Officer or any similar topic only for you Order Now The female took the flight attendant hostage until the plane was on the ground in Detroit, Michigan. The female and the male were able to get off of the plane. The two suspects were caught after they got off of the plane and trying to get out of the airport. The two suspects were the last ones to get off the plane and they did not realize that some of the passengers on board contacted the police via cell phones. Interview Preparation The suspects were identified based on the information that was given from the passengers and crew on the airplane. Since the female suspect, Alexis Johnson, took the flight attendant, Lisa Williams, hostage she could then identify the suspect in detail. Since the suspects were caught after they got off the plane and before they left the airport. The officers can set up interviews at the airport to help obtain all necessary information. In these interviews they will ask the witnesses what happened and for identification of the suspects. Before interviewing the suspects, the officers should try to obtain their background information (Gosselin, 2007). During these interviews there should be other officers that are looking at the scene to ensure that they collect all evidence and information from the plane where all this happened at (Gosselin, 2007). Interviews For the interview process of the witnesses, a structural interviewing will be used. â€Å"Structural interviewing approach builds on the traditional interview by adding the following components: rapport building, narrative description, and an ample interviewee response opportunity† (Gosselin 2007, pg. 71). Witness: The interview for the witness, Ms. Pastor is first set up the day after, so she is able to gather her thoughts as well as get over the shock she experienced. While interviewing Ms. Pastor, she seemed more relaxed as if she only needed sleep. The interview session was set up in a comfortable space, with comfy chairs 4-6 feet away from each other with a table in the center of them. The room was painted a soft color to relax the interviewee. The first thing the officer does is ensure that she had not been injured and she is stable enough to be questioned. After ensuring her condition, the officer established a rapport by using a first name basis. Next, the officer asked Ms. Pastor if the interview could be videotaped or voice recorded. Ms. Pastor decided it would be best to go with voice recording. At this time, the officer feels that Ms. Pastor is comfortable enough to start the interview. The officer begins to ask Ms. Pastor a series of questions beginning with personal information and Ms. Pastor seemed comfortable answering them. Next, the officer asks Ms. Pastor about what happened onboard the aircraft. Ms. Pastor stated: â€Å"I boarded that plane fine, everything was normal, I put my things above me, and sat in my seat, that flight attendants, came and asked if me and others if we wanted anything to drink or eat before takeoff. The flight attendants performed the safety procedures before the plane took off, and told us to fasten our seat belts as the plane was about to depart. As soon as we took off, a lady came out from the bathroom area, telling us to be seated and don’t move or else we will get hurt. I stayed seated and kept my mouth shut, sitting there observing everything she was doing. I was amazed, a women was pulling this off. She and another man were talking up ahead where the pilots are when flying, about something in a purse. After the plane landed they left, I guess they got what they were looking for. The man came from the front of the first class area. They met up in the center then started looking for what they came for. They tried not to talk too much but the girl was a dumb, and I guess wanted to hurry up and find it. She got the man mad and that’s when I heard them say something about â€Å"find it in the bag. â€Å"† After the interview with the witness was completed, the officer thanked her for the information she provided as well as her time. The officer also gave Ms. Pastor her contact information. The officer also informed Ms. Pastor that if she can remember anything else that she feels would be beneficial, to please call. Victim: For the interview of the victim, Lisa Williams, the officer conducted a traditional interview. The traditional interview because she is upset and the officer wants to get the immediate facts as fast as possible (Gosselin, 2007). Lisa Williams was the flight attendant who was taken hostage by the female suspect, Alexis Johnson. The interview room was set up in the security area, a quiet part of the airport with no disturbances, with the chairs facing each other approximately four feet apart; the officer does not sit between the door and Ms. Williams because of the assumption of her not thinking she could leave (Psychological Principles: Interview and Interrogation, 2009). The interview began with asking Ms. Williams for permission to videotape her statement, in which she agreed. In order to establish rapport, the officer and Ms. Williams agreed to address one another by using first names. The officer first began the questions regarding personal information, in order to keep her at ease. Next, the officer began to ask questions regarding what happened on the aircraft. Lisa stated: â€Å"I wasn’t expecting anyone to be behind me. It was right after takeoff; she grabbed me by the back and pulled the back of the flight attendant break area. She said she had a gun. She blindfolded me and bound my hands. To cooperate I would get hurt but if anything went wrong or anything interfered with the plane landing she wouldn’t hesitate to kill me. † After the interview with the victim was completed, the officer thanked her for her time and answering questions. The officer also gave Ms. Williams her contact information. The officer informed Ms. Williams that if she can remember anything that would be beneficial to the case, to please call. The officer walked Ms. Williams to meet with her family. Interrogation There were a few techniques during the interrogation of the pilot, Francis Drebin. The officer started with a subjective interview technique in order to establish rapport and to get him comfortable. The officer wanted him to think that he was in the clear and that they were friends in order to get him to open up and share information. The officer began to ask open-ended questions that allowed him to discuss his typical flight and some of the operations that happened on a regular basis. Upon sharing the names of the flight attendants, his demeanor changed and he began to display signs of nervousness. From here, the officer’s co-investigator switched to the Reid technique for interrogation. This is a nine step technique to obtain a confession to a crime. Mr. Drebin was confronted about the facts of the case and a theme was developed on the events of the incident (Layton, 2013). He was read his Miranda Rights and officially arrested for his role in the crime. Male Suspect: From the information already provided by the witnesses and victim, the pilot of the aircraft was commonly identified by both parties. In light of the details of the incident, the officer uses the structural interviewing technique with the pilot of the plane. This way, he can discuss the narrative of the events of the incident (Gosselin, 2007). Because of the nature of the incident, the interview of the pilot was conducted in the security office of the current terminal of the airport. This room was chosen because of the privacy and the comfort feel of the room. Mr. Drebin was asked if the interview could be videotaped, in which he agreed as well as including another officer in the room. The chairs were at an angle located about five feet apart from one another. Both parties agreed to use first names while conducting the interview. The officer began the questioning with asking personal information in order to keep the suspect at ease. Next, the officer asked Mr. Drebin about his flight. Mr. Drebin stated: â€Å"It started as business as usual. We were ahead of schedule. When I fly the plane, I am isolated from everyone else and only communicate with the tower. I can’t really tell what is going on in the cabin unless I am notified by an attendant about a situation through the two-way intercom. I didn’t communicate with the flight attendants or the cabin until we hit flight altitude, where I told them the length of the flight. † Next, the officer asked Mr. Drebin what he meant by the communication with Ms. Johnson. After approximately thirty seconds, Mr. Drebin stated: â€Å"I am sure that I was just giving the crew some flight plans and times for service. † The officer observed his body language because he was becoming agitated with the questions. His non-verbal’s made it easy to see this. Then he seemed to be nervous and to fidget. Mr. Drebin was informed that he was a suspect in the robbery heist and was placed under arrest. The officer read Mr. Drebin his Miranda Rights. When the officer began to question Mr. Drebin, he decided to lawyer up. Female Suspect: At the scene of the robbery a female suspect was captured. She was then asked what her name was; she refused to speak. The arresting officer then proceeded to read the woman her Miranda rights and placed her in the police cruiser. Once we arrived at the police station the female was then place in a small room for questioning. When the officer entered the room to begin questioning, she established a rapport with the female. Both parties sat at opposite ends of the table. The officer asked her what her name was and she refused to answer. The female was suspect was informed was caught by another officer and the jewels were found in her purse at the time of arrest, there is more than enough evidence to put her away and that she is going to get one more chance to tell your side of the story. She still refused to speak. The officer proceeded to inform her that the male suspect in custody and he is already placing blame away from him; if she doesn’t want to take all the heat, she needs to start talking. She then proceeded to say that she was part of the robbery. The cognitive technique was used in order to gain rapport and start with easy questions to help get and keep her relaxed. However as the questions seemed to become harder, she was not happy and would not continue with the questions (Heuback, 2010). The female suspect was asked her name, in which she replied Alexis Johnson. Ms. Johnson was then asked personal questions in order to get her at ease. Ms. Johnson was reminded of her Miranda rights and she informed the officer they were already read and understood them. When asked why she robbed the plane, Ms. Johnson stated: â€Å"I felt that I could use the extra money and buy everything that I have ever wanted. † Ms. Johnson then decided that she wanted a lawyer present. Summation In this crime scene we found out how two individuals worked together to steal some diamonds off an airplane. These two people were very intelligent, and they did manage to get the diamonds off the airplane. However, the suspects were not able to make it out of the airport before they got caught. The police met them at the door. Both suspects were found guilty of their crimes and arrested. Bibliography The officers can set up interviews at the airport to help obtain all necessary information. In these interviews they will ask the witnesses what happened and for identification of the suspects. Before interviewing the suspects the officers should try to obtain their background information (Gosselin, 2007). During these interviews there should be other officers that are looking at the scene to ensure that they collect all evidence and information from the plane where all this happened at (Gosselin, 2007). For the interview process of the witnesses, a structural interviewing will be used. â€Å"Structural interviewing approach builds on the traditional interview by adding the following components: rapport building, narrative description, and an ample interviewee response opportunity† (Gosselin 2007, pg. 71). The traditional interview because she is upset and the officer wants to get the immediate facts as fast as possible (Gosselin, 2007). The interview room was set up in the security area, a quiet part of the airport with no disturbances, with the chairs facing each other approximately four feet apart; the officer does not sit between the door and Ms. Williams because of the assumption of her not thinking she could leave (Psychological Principles: Interview and Interrogation, 2009). Drebin was confronted about the facts of the case and a theme was developed on the events of the incident (Layton, 2013). In light of the details of the incident, the officer uses the structural interviewing technique with the pilot of the plane. This way, he can discuss the narrative of the events of the incident (Gosselin, 2007). The cognitive technique was used in order to gain rapport and start with easy questions to help get and keep her relaxed. However as the questions seemed to become harder, she was not happy and would not continue with the questions (Heuback, 2010). References Gosselin, D. (2007). Smart Talk Contemporary Interviewing and Interrogation. Upper Saddle River: Person Prentice Hall. Heuback, J. (2010). Suspect Interrogation: Communication Strategies and Key Personality. Retrieved from ACTR Advances in Communication Theory and Research: http://www. k-state. edu/actr/2010/12/20/suspect-interrogation-communication-strategies-and-key-personality-constructs-jessica-heuback/default. htm Layton, J. (2013). How police interrogation works: The Reid Technique. http://people. howstuffworks. com/police-interrogation. htm Psychological Principles: Interview and Interrogation, (2009). Interview and Interrogation Rooms. http://www. social_engineer. org/framework/Psychological_Principles:_Interview_and_Interrogation How to cite Robbery: Flight Attendant and Officer, Essay examples

Summary on Living With Music by Ralph Ellison Essay Example For Students

Summary on Living With Music by Ralph Ellison Essay In this essay, Living With Music, Ralph Ellison speaks of the importance of music in a persons life. He presents the contributions that it offers, such as giving people understanding, order, and meaning, while it also helps us shape our own unique social and cultural identity. Firstly, Ellison describes his first experiences with music. During his childhood years, he played a brass horn. He remembers how his music teacher and tradition says to play what he heard and felt around him, but like most music teachers do, they stress he importance of playing what a person is supposed to hear and feel, making music so unenthusiastic. He recalls of the deafening and shrieking noises he made, instead of playing a smooth flow of notes. Like most kids, he eventually gave up on playing the instrument, for he found it dead and a bore. It was later on in his life that he met up with music again. He had a neighbor that lived on top of his apartment. Her notes, apparently, were off, and sometimes she would shriek. To get back at her, he bought a speaker system, which he used to rowan and to contradict her music. Only when he moved away to a new apartment was when he realized that he missed the music that he heard. Ralph Ellison apprehended the power of music. He realized that music can is a constant reminder of your past and of whom you were, while it reminds us of our aspirations. At the same time, it is an escape. It helps to drown the troubles in life, as he did to drown the horrible notes that his neighbor sung. Music will not only calm when one is troubled, it will resurrect and liven him.