In this lab‚ we were able to determine measuring the pH of liquids work. We were able to compare the liquids based on their pH level and determine which liquid was acidic or basic. Our results showed that if something came out to be seven or less‚ according to the pH scale‚ it means that an acid is a substance that donates hydrogen ions. Because of this‚ when an acid is dissolved in water‚ the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide
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fires and is a tool that you should carry when you go into the woods. Cerium and the element before‚ lanthanum are both used for dramatic spark effects in movies. They get a big block of it and put it to a grinder. Its atomic number is 58 and its chemical symbol is Ce. The last element I will discuss is neodymium. It is the best known out of the lanthanide series out of rare earths because of the one and only neodymium magnets. They are the strongest magnets in the world and there are many purposes
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pH Affecting on Amylase Enzyme Is there a difference in the concentration of pH in the amylase enzyme activity? The null hypothesis would be that there will be no difference in the concentration of pH and alternative hypothesis would be that there will be a difference in the concentration of pH. The predication if that there will be a difference in the concentration of pH. The pH affects on enzyme activities‚ one of the enzyme that was used in the process was amylase. When a serial dilution was
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Explore how perceptions of belonging and not belonging can be influenced by connections to places. Throughout his life‚ Peter Skryznecki went through times where he felt as if he belonged and experienced times where he also felt alienated and lost. These perceptions were shaped by his personal‚ cultural and social experiences. His sense of belonging and not belonging also emerged from his connection with certain places. This is seen in his two poems St Patrick’s College and Feliks Skryznecki.
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Chemical Senses OLFACTION The sense of smell. Begins with the detection of molecules suspended in the air Olfactory stimuli Must be soluble in fat Taken through the nostrils and circulated within the nasal cavities connected to the nostrils. Olfactory epithelium Thin sheet of cells which contain neural receptors for olfaction Contains olfactory receptor cells and glia-type support cells that produce mucus Also contains basal cells which give rise to new receptors when needed Olfactory
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Report Submitted: February 17‚ 2013 Title: Physical and Chemical Properties Purpose: To investigate and learn the physical and chemical properties of pure chemical substances. Procedure: I used various different tools to investigate the different physical and chemical properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red
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|Hello my name is David Hummingbird and I am going to talk about belonging | |and how it is a common theme in many different texts. The “immigrant | |chronicles” by Peter Skrzynecki is a collection of poems that explores | |belonging to place‚ relationships and community and the pain | |uncertainty of not belonging. Belonging is a way of having acceptance‚ | |security and fulfilment whether it’s belonging to a group of friends‚ | |family‚ race or culture‚ In the movie “Freedom
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9 - 2 0 1- 0 3 3 REV. AUGUST 6‚ 2003 GEORGE CHACKO PETER TUFANO Diageo plc Ian Cray‚ Diageo plc’s Treasurer‚ looked out of his office window onto the busy streets of London in October 2000. The London-based consumer goods company Diageo had recently announced its intention to sell its packaged food subsidiary‚ Pillsbury‚ to General Mills. Earlier in the year‚ Diageo also announced its intent to sell 20% of its Burger King subsidiary through an initial public offering during 2001‚ to
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Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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Chemical equations are the symbolic representations of chemical reactions that are made up of reactants and products. It is made up of the chemical formulas of the reactants and the chemical formula of the products. The reactants are the substances or chemicals that takes part in during a reaction and the products are the chemicals are the substances that result from the chemical reaction. Reactants are on the left side of the chemical equation and the products are on the right side of the chemical
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