Significant Figures are very important when reporting scientific data because they give us knowledge of how well we can actually measure data. Before getting into the calculations we must first understand the rules for counting significant figures. 1. All nonzero digits are significant. Example: 547 (3 sig. figs.) 2. Zeros in a number between non-zero digits are always significant. Example: 4308 (4 sig. figs.) 3. Trailing zeros to the right of a decimal point are significant. Example: 4
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Chemistry is a big part of your everyday life. You find chemistry in daily life in the foods you eat‚ the air you breathe‚ your soap‚ your emotions and literally every object you can see or touch. Here ’s a look at some everyday chemistry. Elements in the Human Body Steve Allen‚ Getty Images Your body is made up of chemical compounds‚ which are combinations of elements. While you probably know your body is mostly water‚ which is hydrogen and oxygen‚ can you name the other elements that make
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Lesson Observation 1 Teacher’s name: Slusari Alexandra Observer’s name: Cebotari Tatiana Topic: Artisanship Date: 10 of April Number of students: 10 Class: VII “B” The lesson I have observed was on the topic “Artisanship”. At the beginning of the lesson the teacher put a clear set of aims to the pupils. She had a lesson plan which helped her to organize the lesson better. She used a lot of additional material. First of all at the beginning she involved pupils into the lesson by asking pupils
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Chemistry and Society CHM/110 Xavier Villarreal November 6‚ 2011 Chemistry is a vast quantity of a person’s everyday life. A person can find chemistry in his or her daily life in the foods that a person eats‚ air a person breathes‚ soap‚ and accurately everything a person comes in contact with. Chemistry is significant in everyday life because chemicals make up everything in life. For example‚ a person’s body‚ pet‚ a desk‚ the sun‚ food‚ and drugs a person may take‚ to name a few. A person
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Connections: Chemistry Assignment By. Sujay Sukumar 5. a) When analyzing the graph‚ a relationship between the hydrocarbon chain of the alkane and its corresponding boiling point can certainly be noticed. There is a increasing correlation which can be explained using the theory that as each hydrocarbon chain gets bigger‚ there are more atoms and thus more electrons which contributes to higher dispersion forces and therefore a higher boiling point which is clearly seen through the graph. b) Uses of
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ACKNOWLEGEMENTS ACKNOWLEGEMENTS First of all I would like to thank my chemistry teacher Ms. Shyamala for providing adequate information which was a great helping hand from her .I would like to thank my parents. Even their support was an immense assistance. First of all I would like to thank my chemistry teacher Ms. Shyamala for providing adequate information which was a great helping hand from her .I would like to thank my parents. Even their support was an immense assistance. Certificate
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The Key to Success What kind of support would a student need to learn the concepts presented? How should a teacher provide the professional skills to effectively teach his students? A teacher must know how to teach his student the skills that will remain lodged in his or her brain for years to come. Effective teachers are not those who are laid back but those who are devoted to make a difference in an eager student. Those are the teachers who will put in the extra time and the effort to each individual
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LESSON PLAN – ENGLISH LESSON Date : XX XX 2013 Class : Form 2 Dinosaur Number of Pupils : 25/25 Time : 10.50 am- 12.10 am Topic : People – Self‚ Family‚ Friends Main Skilss : Writing Integrated Skills : Listening‚ Reading Curriculum Specifications : 1.2 Take part in social interaction Level 2 - Writing simple messages to friends and family members relating to the above functions Learning Outcomes/ Objectives : By the end of the lesson‚ students will
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Chemistry of cosmetics Few people would whip out a chemistry set‚ uncork the vials‚ and slap the compounds on their face. Yet‚ millions of women and girls essentially do that every day when they unzip their makeup bags and apply lipstick‚ mascara‚ and other makeup. Like the compounds in a chemistry set‚ makeup consists of chemicals. Although the chemicals in cosmetic products are intended to improve the appearance of skin‚ lips‚ and lashes‚ some can cause adverse effects. Emulsions The majority
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Food Chemistry: Option F Food Groups: F.1 Food & Nutrients Food: any substance‚ whether processed‚ semi-processed or raw‚ which is intended for human consumption‚ and includes drinks‚ chewing gum and any substance which has been used in the manufacture‚ preparation or treatment of “food” but does not include cosmetics or tobacco or substances used only as drugs. Nutrients: any substance obtained from food and used by the body to provide energy‚ to regulate growth‚ and to maintain and repair
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