The Big Bang theory states that all the matter that is in the universe was once in a very small amount of space with infinite temperature‚ pressure‚ and density. This theory is well supported and there are many reason for it’s support. One main reason is that no one really has a clue and The Big Bang Theory seems far fetched but more reasonable than any other ideas that there are out there. Some of the important thing to know about the big bang to understand are the beginning and the few seconds
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we began naming acids and bases we must understand each term. A base is a compound that produces hydroxide ions when dissolved in water. An acid is a compound that produces hydrogen ions in solution is a hydrogen-ion donor‚ or electron –paired accepter. The name of the acid depends on the ion’s ending and the number of hydrogen atoms must be equal to the negative charge‚ and the name of a base depends on if it contains OH or hydroxide. The naming of an acid depends on the suffix of the cation or
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CO2 and H2O as main products. 2) A hydrocarbon is a molecule that contains only carbon and hydrogen 3) Combustion analysis of naphthalene‚ a hydrocarbon used in mothballs‚ produced 8.80g CO2 and 1.44 H2O. Calculate the empirical formula for naphthalene. 8.80g CO2 (find moles of Carbon by dividing the molar mass and doing the molar ratio of C and CO2 = 0.200mol C. 1.44H2O (find moles of Hydrogen by dividing the molar mass of water and doing the ratio of 2moil H/1molH2O) 0.160mol H divide
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Methylene blue can act as an artificial hydrogen acceptor; when this dye is reduced by accepting hydrogen atoms it goes colourless. As such‚ it can be used to guage the rate of respiration by measuring the time taken for it to turn colourless. Methylene blue‚ acting as a hydrogen acceptor‚ is decolourized during the respiration of yeast. By measuring the time taken for a fixed amount of the dye to be decolourized‚ the relative rate of respiration (a catabolic process) can be deduced. Results:
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ELECTROLYSIS Electrolysis decomposition of compound using electricity Electrolyte an ionic compound which conducts electric current in molten or aqueous solution‚ being decomposed in the process. Electrode a rod or plate where electricity enters or leaves electrolyte during electrolysis. Reactions occur at electrodes. Discharge the removal of electrons from negative ions to form atoms or the gain of electrons of positive ions to become atoms. Anode
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with potassium hydroxide in aqueous ethanol. The 3-chloro-3‚ 7-dimethyloctane will lose a hydrogen from three different carbons that cause the formation of three constitutional isomers. If the hydroxide ion attacks a hydrogen on the 3-methyl carbon‚ then 2-ethyl-6-methyl-1-heptene will be the product. If a hydrogen on the carbon-2 was attacked‚ then the product would be 3‚ 7-dimethyl-2-octene. If a hydrogen was attacked on the carbon-4‚ then 3‚ 7-dimethyl-3-octene will result (Figure 1). As a side
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things. * Proteins‚ DNA‚ carbohydrates‚ and other molecules that distinguish living matter from inorganic material are all composed of carbon atoms bonded to each other and to atoms of other elements. * These other elements commonly include hydrogen (H)‚ oxygen (O)‚ nitrogen (N)‚ sulfur (S)‚ and phosphorus (P). (CHONPS) Concept 4.1 Organic chemistry is the study of carbon compounds * The study of carbon compounds‚ organic chemistry‚ deals with any compound with carbon (organic compounds)
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THE CHEMISTRY OF LIFE (Review 1-7) I. Basic Chemistry A. Elements 1. Definition- an element is a substance composed of a single type of atom 2. Major elements of the human body 3. Trace elements of the body B. Atoms 1. Definition- the atom is the smallest part of an element which cannot be broken down further by ordinary chemical means. Atoms are composed of protons‚ neutrons and electrons. 2. Particles that make up atoms
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Stars expand as they grow old. As the core runs out of hydrogen and then helium‚ the core contacts and the outer layers expand‚ cool‚ and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. Its fate is determined by the original mass of the star; it will become either a black dwarf‚ neutron star‚ or black hole. NEBULA -A nebula is a cloud of gas (hydrogen) and dust in space. Nebulae are the birthplaces of
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Chemical Reaction: Cold Packs CHM110 Chemical Reaction: Cold Packs Introduction Chemical reactions happen every day in a variety of ways. We will explore the science behind cold packs and the chemical reactions that happen at the molecular level. Furthermore‚ we will examine and explain what chemical bonds are formed‚ broken‚ or both. The product is a simple construct of two bags: one containing water (solvent) and the other a chemical compound called ammonium nitrate (NH4NO3). In order to activate
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