Chemistry is the science of dealing with the compounds‚ elements‚ and molecular structure of matter. Essentially‚ chemistry is the science of examining substances and objects to find out what they’re made of and how the react to different conditions. All projects Accelerate Rusting To demonstrate how a chemical reaction from vinegar‚ water‚ and bleach can accelerate the rusting process of steel. Acids And Bases To determine which chemicals are acids and which are bases. Apple Mummy To
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reactants used and the amounts of products formed in a chemical reaction”. Basically‚ Stoichiometry is the science of counting and studying the relationship between the amounts of the reactants to the product. To think of stoichiometry outside of chemistry‚ imagine a bookshelf. To assemble the bookshelf you may need 3 planks of wood‚ 1 giant plank of wood‚ and 20 nails. Even though the amount of the reactants is high‚ the product would be only one bookshelf. Stoichiometry is basically studying the
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COMPARATIVE INVESTIGATION OF ORGANIC COMPOUNDS Abstract Organic compunds were examined to a comparative investigation to differentiate the properties of each sample. The physical state at room temperature‚ odor and color of the sample were noted by simple observation. In terms of solubility in H2O‚ 5% NaOH solution and 5% HCl solution‚ the samples were classified as to miscible‚ slightly immiscible or immiscible for liquid; and very soluble‚ soluble‚ partially soluble or insolubse for solid. The
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after no one questioned the theory of atoms‚ untill the early 1800’s. John Dalton was born in 1766 in Cumberland‚ England. Dalton made many experiment strictly to atom study even though he had no idea what is was. He is most known for the extensive research on atoms. He proposed a table of atomic weights for the number of the known element. This image is Dalton’s table of elements and the number of elemental combinations described in his 1808 publication ‘New System of Chemical Philosophy’. It also
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EXTRACTION OF XANTHONE IN GARCINIA MANGOSTANA L. (MANGOSTEEN) FOR TOOTHPASTE BY : BACHELOR OF SCIENCE (CHEMISTRY SCIENCE) CHAPTER 1 1.1 INTRODUCTION 1.2.1 Introduction Mangosteen is the common name for Garcinia mangostana L. (GML). The fruit is dark purple or reddish in colour‚ with white‚ soft‚ and juicy edible pulp. The fruit taste is sweet with a slightly acid and also have a pleasant aroma. Nowadays‚ there were a lot of studies and researches about the extraction
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university of Business Agriculture and Technology Assignment No-01 Course name- General Chemistry “Topic” The importance of Chemistry in our daly life Submitted to Dr.Mohammad Harun-Ur-Rashid Submitted by Group-Royals Chemistry: The chemistry is the study of substances specially their structure‚ properties‚ transformations and the energy accompanying these transformation. Chemistry is very important within our daily lives. We are using it all of the time without even realizing
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ALCHEMY TO CHEMISTRY Can we say that alchemy and chemistry are two different things? Actually no‚ we can’t. Alchemy is the pioneer of today’s modern chemistry. As the time passed alchemy has changed and developed to form Chemistry. Therefore we shouldn’t think that they are two different subjects. In this article‚ first of all you will learn how alchemy was found and evolved .After that how it transitioned from alchemy to chemistry and finally the similarities and differences between them.
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Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2012 1 2 3 4 5 TOTAL Science B Unit Chemistry C1 CHY1H Chemistry Written Paper Unit Chemistry C1 H Thursday 26 January 2012 You will need no other materials. You may use a calculator. 9.00 am to 9.45 am Time allowed 45 minutes Instructions Use black ink or black ball-point pen. Fill in the boxes
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Chemistry and Us The world is surrounded by so many things and everything is made of chemicals. Chemistry is very vital because it helps us to know the composition and changes of matter. Every single day of our life passes through chemistry in many ways. Human body works through the chemical reactions happening inside it. When we breathe‚ eat and sleep there’s still the presence of chemistry. The oxygen and foods we take helps our body to work. Exchanges of gasses‚ breaking down of foods we
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Are BHA and BHT bad for you? Cassandra Moore Chemistry 102 Professor Kittredge 2011 The foods we consume can have different kinds of compounds in them that we didn’t know about. These compounds added to the foods we eat are not always detectable. For instance certain compounds can be listed on the nutrition label and we can’t even taste or see them. Butylated hydroxyanisole and butylated hydroxytoluene‚ also known as BHA and BHT‚ are both phenolic compounds that are added to certain foods
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