"How do you tell if a pure substance is a compound or an element" Essays and Research Papers

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    The Physical Properties of Eleven Chemical Compounds Problem: Discover whether various chemical compounds are molecular or ionic and if they are acidic or basic. Hypothesis: If the compound is ionic‚ then it will be soluble because the energy given off water molecules compensates for the energy needed to break ionic bonds‚ also‚ if the compound is Ionic‚ it will be an electrolyte‚ because they mostly break up into ions when in water. If the compound is molecular‚ then it will be soluble‚ it cannot

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    In a final bid to secure freedom for Tom Robinson‚ Atticus Finch uses several linguistic tools in his last speech to the jury to attempt to sway their opinions of Tom’s guilt in the crime. Emotive language is used in Atticus’s speech to create a powerful effect in his audience. He first uses to make people feel sorry for Mayella Ewell: ‘She is the victim of cruel poverty and ignorance’. Use of the word ‘victim’ is effective in building pity for Mayella‚ as it implies that she is not at fault for

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    Pure Cultures Lab Report

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    Jody Kaur Pure Cultures Lab 1/31/13 Introduction : Pure cultures are made of only one type of organisms and can be used to study their properties. A method used to isolate pure cultures is making a steak-plate‚ which is a dilution process in which culture is spread over an agar plate in a certain manner. Using a loop rod‚ culture was taken from the tube and dragged across area 1 several time‚of the agar. The agar was then turned 90º‚ and the loop was flamed and cooled. Taking some culture

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    Why you should leave Miami‚ why you should stay in Miami‚ and why it’s a personal matter. Zoom out for a second. Take a brief look at the individual shingles that make up your roof. Continue and you’ll realize the different geometric patterns and lines that compose the different roads‚ rivers‚ and county lines of your surrounding city. Go further‚ until you can make out the entire outline of the state you reside in. We are‚ in the grand scheme of things‚ an infinitesimally small particle in this

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    though I doubt you begin to notice until much later. In fact the very second you were born it had already begun. Mom and Dad did as much as they could to help you adjust‚ but the warm world you had lived in would never be the same. You messed your diaper‚ you rolled off the bed‚ and you collapsed in earsplitting tomato faced hysterics for no reason. You couldn’t even get food from the table to your cute little mouth for quite some time. Then something spectacular happened. You wanted to pick up

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    Report Classification of Chemical Substances Student: Saule Sadykova Lab Partner #1: Temirlan Atambaev Lab Partner #2: Almas Ospanbekov Instructor: Eugene Douglass Nazarbayev University Purpose The aim of this experiment is to investigate the properties of several substances with the purpose of determining whether they are molecular‚ ionic‚ macromolecular or metallic. Introduction Chemical substances could be named ionic‚ molecular or metallic substance‚ based on the kind of bond present

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    What do you think is unethical? The countrywide approved everyone to get their loans‚ no matter they have jobs or not‚ no matter they have income or not‚ no matter they have assets or not. The criteria they use may be unethical. They don’t care whether the documents are valid‚ whether they can verify the income‚ whether the appraisal is any good. They just care about getting the loan closed‚ in order to do another loan. The underwriters/ contractors looked through the loan as quick as they can.

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    The quote‚ “If you educate a boy‚ you educate an individual but if you educate a girl‚ you educate a nation” originated from an African proverb. It might have originated because of the societal roles of men and women‚ society’s expectations‚ and the contribution each gender has made to the community. Both men and women have educated the nation in many different ways‚ either by contributing to the society‚ or to their families. Hence‚ I disagree with this quote‚ as not all men have never educated

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    vote or to have other opportunities.Me as the leader in our community‚ I think if we want to improve the condition of our African American life we would have to not give up and keep trying‚ lose some pride that we may have‚ and also let no one tell you what you are capable or what you’re not. Working together we could all make a difference and change anything‚ so our future would be better. If we want to make a difference we have to lose some pride in our self. We all have pride for what we are and

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    Elderly Substance Abuse

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    Substance Abuse Among the Elderly Substance abuse is widely recognized as one of the most serious social‚ ethical‚ and legal problems of the modern day‚ but few people realize how serious this issue affects the elderly population of the United States. Substance abuse is generally considered to be a problem of early adulthood‚ however‚ the truth is that substance abuse impacts older Americans on a large scale‚ and must be addressed through a multifaceted approach in which nurses play a key role. This

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