"Pure substance is it a compound or an element" Essays and Research Papers

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    Compounds First to define the word‚ compounds are pure substances made up of atoms of two or more elements chemically combined together in fixed ratios determined by mass. When a compound is formed from its components‚ a chemical change takes place through chemical reactions. Elements form compounds to become more stable‚ which happens when the maximum number of possible electrons are in the outermost energy level. Carbohydrates: A carbohydrate is one of the elements of the 5 major compounds

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    Date Performed: November 18‚ 2010 2009 – 14077 Ma’am Rea Abuan Experiment # 1 SOLUBILITY OF ORGANIC COMPOUNDS State what types of intermolecular forces are present in solutions formed due to intermolecular attractions between the solute and the solvent. Compound 1 Compound 2 Intermolecular Forces Class S (Water-soluble) Compounds Acetone Water Hydrogen Bonding & London Dispersion Forces Diethyl Ether Dipole – Induced Dipole & London Dispersion Forces

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    Naming of Ionic Compound

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    Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You

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    Compound Words

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    HOLIDAY HOMEWORK CLASS – VIII English Story Book Reading : The Little Prince. Written Assignment based on Reading : (Literature Exercise Book) Mention the qualities of The Little Prince that highlights the story. What values do you learn from these qualities that will help you in your life and lead you to write and build the story of your life. Bengali (2nd Language) 1. Write down any incident of your childhood with illustration (within 150 words) 2. Write down one paragraph about “Products

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    Substance Abuse

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    Substance abuse is a growing problem that not only affects the person who is abusing alcohol or drugs but affects the lives of those who are close to the abuser. Substance abuse is the abuse of any substance. A drug is a substance that modifies one or more of the body’s functions when it is consumed. Everything from over-the-counter pain medication‚ to opiates‚ prescription drugs such as Oxycontin‚ alcohol‚ cocaine‚ heroin and even coffee can be abused in one way or another. The two main substances

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    Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or

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    RESEARCH OF SUBSTANCE ABUSE AND NURSING A major health problem in the United States is substance abuse. Substance abuse is the misuse of‚ illegal drugs‚ alcohol‚ inhalants prescription drugs‚ and other substances that change how the mind and body work. Drugs that are most commonly abused are alcohol‚ nicotine‚ marijuana‚ amphetamines‚ barbiturates‚ cocaine‚ opium alkaloids‚ and synthetic opioid. These drugs are either excessively used or not used for its intended purpose. Substance abuse transcends

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    substance abuse

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    Substance Abuse The sociocultural theory‚ the behavioral/cognitive theory and the biological theory are all Viewpoints with which I agree. These viewpoints all share certain elements. The sociocultural theory holds that substance abuse results from stress and environmental factors. In situations where low socioeconomics and unemployment are evident‚ drugs are commonly used as a means of relief from stress. The behavioral/cognitive viewpoint sees the situational substance

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    LU 1 - Tutorial 1. Write the formulas for the following compounds: Compound Copper (II) chloride Iron(II) sulphate Sodium sulphate Ammonium nitrate Sodium nitrite Potassium sulphate Magnesium phosphate Formula Compound Lithium acetate Manganese (IV) nitrate Potassium permanganate Iron (III) oxide Potassium sulphite Potassium hydrogen carbonate Sodium iodate Formula 2. Express the following numbers in scientific notation: a) 0.000000027 b) 356 c) 47 764 d) 0.096 3. Express the following numbers

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    Substance Abuse

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    Substance abuse- Inhalants The term substance refers to chemical compound that are ingested in order to alter mood or behavior. Substance use: It is the ingestion of psycho active substance (which alters mood or behavior) in moderate amount that does not significantly interfere with social‚ educational or occupational functioning. Eg: Drinking a cup of coffee in the morning in order to wake up. Substance intoxication: It means our physiological reaction to ingested substances that is getting high

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