What sort of thing form in chemical reactions? Products are the finished product of a chemical equation‚ and reactants are what make up the products. ( atoms‚ matter‚ molecules‚ energy‚ rate‚ temperature) Name some compounds: H2O (Hydrogen and Oxygen elements - Water) CH4 (Carbon and Hydrogen elements - Methane) NaCl (Sodium Chloride- salt) Different types of compounds: Metal + Metal = Metallic Compound Metal + Non-Metal = Ionic compound Non-Metal + Non-Metal = Covalent compound Different types
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Safety measures in the chemistry laboratory The mentors are responsible for instructing the competitors as to the risks to which they are subjected when working in a chemistry laboratory‚ as well as to the basic safety measures‚ and first aid. Specific behavioral and safety measures must be obeyed to prevent accidents. Rules in the lab: * Use protective clothing all the time (e.g. lab coat and safety glasses) * Use a hair band to keep your hair away from your face. *
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Materials: • Graduated cylinder • 2 marbles • Liquids to test such as water‚ corn syrup‚ canola oil‚ motor oil • Masking tape • 1 cm ruler • Stopwatch that is accurate to 0.1 or 0.01 seconds SAFETY NOTE: See Texas Science Safety Manual for lab and investigation guidelines: http://www.tenet.edu/teks/science/safety/safety_manual.html Engagement: Place a wooden ramp on a stack of books. Challenge students to predict which of three liquids (syrup‚ water‚ and motor oil) will reach the bottom
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Procedure. 1) Accurately weigh approximately 2 g of the mix and dissolve it in 50 mL of diethyl ether. Be sure to dissolve the entire mix since it is not homogeneous. 2) Pour the solution into a separatory funnel. 3) To extract the nicotinamide from the mixture‚ add 5 mL of 5% HCl and shake gently. Draw off the lower aqueous layer into 125 mL Erlenmeyer flask and repeat the extraction with a second portion of HCl. Combine the three extracts and then set this mixture aside. 4) To separate the
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Chemistry is a central discipline and a very important subject which is very often studied thoroughly in most colleges and universities. Like physics‚ math‚ economics‚ biology‚ or geometry‚ chemistry for many centuries remains a root science for the development of a great deal other theoretical and practical scientific branches and disciplines. Very often‚ chemistry becomes a topic of academic essays‚ term papers‚ research papers‚ reviews‚ and other academic papers. Writing a research paper on
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The Role Of Chemistry To Our Society Chemistry plays a huge and important role in society‚ with relation to shelter and clothing. For example‚ chemists come up with new paints and epoxy sprays that protect shelters from the wear and tear inflicted by rain‚ wind‚ sun and pollution. These space age coatings and paints are designed to make properties look better‚ perform better and last longer. Thermal chemical compounds may protect rooftops and also help structures stay at the right temperature
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directly affects safety and protection measures for hazardous chemicals. These two types of analyses are collectively known as analytical chemistry and a basic understanding of it is important for any professional handling and dealing with chemicals. Objective: The objective of this lab is to introduce the participating students to qualitative analytical chemistry. The group will be given an unknown pure organic liquid sample and will need to perform a series of tests in order to identify the species
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| | |CHAPTER 1: INTRODUCTION TO CHEMISTRY | | |2 |1.1 Understanding chemistry and |A student is able to:
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AP Chemistry Kinetics Lab Abstract: The purpose of this lab is to learn how to write law expressions‚ determine orders by graphs‚ and calculate rate constants. By determining the number of drops of sodium hypochlorite necessary to make a diluted food dye change to colorless in less than three minutes helps calculate the absorbance which can then be analyzed to find the pseudo rate constant and eventually leading to the rate constant and the rate law. The results show that the m and n are both 1st
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Chemistry 02 Oct 2014 Flame Test Lab Purpose: To find out the unknown compound from known compounds and the color of the flame. Safety & Precautions: •Do not cross contaminate compounds. •Keep goggles on at all times when working on lab. •Long hair should be tied up to avoid being singed. Table of Observations Compound Flame Color Strontium Chloride strong dark orange red Strontium Nitrate bright orange Copper
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