What is Chemistry? Chemistry is the study of matter and energy and the interactions between them. This is also the definition for physics‚ by the way. Chemistry and physics are specializations of physical science. Chemistry tends to focus on the properties of substances and the interactions between different types of matter‚ particularly reactions that involve electrons. Physics tends to focus more on the nuclear part of the atom‚ as well as the subatomic realm. Really‚ they are two sides of the
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Vocabulary- The Vietnam War 1. Ho Chi Minh- a Japanese nationalist leader during the Vietnam War who supported communism. He later became the president of North Vietnam. 2. Vietminh- an organization whose goal was to win Vietnam’s independence from foreign rule‚ mostly formed by Ho Chi Minh 3. Domino Theory- The theory that if one nation is taken over by communism‚ many other countries would become communism too. 4. Vietcong- A communist opposition group in the South that
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Chemistry Review sheet: Unit 1- Lesson 1‚ 2 *Key notes to keep in mind* ü Metals have a high low ionization energy ü Non-metals have a high electron affinity · Atom: The basic unity of an element which still retains the elements properties · Atomic number: the unique number of protons in the nucleus of a particular element · Isotope: Atoms of the same element which contain a different number of neutrons · Periodic law: The chemical
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obtained by applying Le Chatelier’s principle Materials Required: See page 209 Heath Chemistry Laboratory Experiments Procedure: See pages 209-211 Heath Chemistry Laboratory Experiments Data and Observations: Table 1 Equilibrium Involving Thymol Blue REAGENT ADDED STRESS (ION ADDED) COLOR OBSERVATION DIRECTION OF EQUILIBRIUM SHIFT HCl (Step 3) HCl (Step 4) NaOH (Step 5) NaOH (Step 6) Table 2 Equilibrium Involving Thiocyanatoiron (III) Ion
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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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Leading zeros are not significant. Example: 0.000045 (2 sig. figs.) 5. Measured values that have trailing zeros only to the left of the decimal point are ambiguous and should be expressed in scientific notation. We must take note that the chemistry textbook (Silberberg 6e) states that placing a decimal point to the right of some trailing zeros (example: 300.) will make the zeros significant. However in General Chemistry‚ we do not follow this rule. If we want to write a whole number with trailing
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Art History Vocabulary Terms Form in speaking of a work of art or architecture‚ the term refers to purely visual component: line‚ color shape‚ texture‚ mass‚ value‚ space; all of which are called formal elements. Composition is the organization‚ or arrangement of form in a work of art. Style a particular manner‚ form‚ character of representation‚ construction‚ or expression typical of an individual artist or certain school period that makes the work visually distinctive. School of artist
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Vocabulary Being able to explain how you feel in English is extremely important if you live or travel in an English-speaking country. You need to be able to tell a doctor exactly how you feel. For example‚ is your pain sharp‚ dull‚excruciating? Is it a burning pain‚ or do you feel sore? All of these different kinds of pain may be signs of very different health problems. Below is a list of different symptoms. Things you have: • I have an upset stomach. • I have a wheezing
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A. Role of Chemistry in Society Applications of chemical science have contributed significantly to the advancement of human civilization (1‚ 2‚ 3). With a growing understanding and ability to manipulate chemical molecules‚ the post-World War II chemist was considered a societal problem solver. They synthesized crop-enhancing agricultural chemicals to ensure a constant and viable food supply. They played a significant role in the eradication of deadly diseases by developing life-saving pharmaceuticals
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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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