3.1.1 Identify that matter is made of particles that are continuously moving and interacting The particle theory states that all matter is made up of tiny particles and they are constantly moving/continual state of motion. 1.1.2 Identify the difference between elements‚ compounds and mixtures in terms of particle theory Elements are simplest form substance meaning cannot be decomposed further physically or chemically. They are made up of same type of atoms only e.g. helium‚ oxygen. Compounds
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equation into chemical formula for the reactants and products Using valency rules 3. Balance the equation Adjust coefficients to get equal numbers of each kind of atom on each side 4. Specify the physical state for each species present (s) = solid‚ (l) = liquid‚ (g) = gas‚ (aq) = aqueous or dissolved in water Example 1. Phosphorus + chlorine phosphorus trichloride 2. P + Cl2 PCl3 3. Atoms on either side of the arrow are not balanced Reactants: P = 1‚ Cl = 2 Products: P = 1‚ Cl = 3 Insert
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Qualitative Cation Tests Peter Jeschofnig‚ Ph.D. Version 42-0194-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing
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CHAPTER 10 Liquids and Solids 1. Order the intermolecular forces (dipole-dipole‚ London dispersion‚ ionic‚ and hydrogen-bonding) from weakest to strongest . a) dipole-dipole‚ London dispersion‚ ionic‚ and hydrogen-bonding b) London dispersion‚ dipole-dipole‚ hydrogen-bonding‚ and ionic c) hydrogen-bonding‚ dipole-dipole‚ London dispersion‚ and ionic d) dipole-dipole‚ ionic‚ London dispersion‚ and hydrogen-bonding e) London dispersion‚ ionic‚ dipole-dipole‚ and hydrogen-bonding Ans: b 2. Hydrogen
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Paraskevi Campus we deal with the density of solids and density of liquids. The main purpose of this experiment is to understand what in reality density means‚ how we can measure it‚ how useful it is‚ what is the difference between density of solids and liquids‚ if the measurements that we did are been accurate and how we can calculate the percentage errors. materials 3 different metals A) copper B) iron C) aluminum - 3 Different liquids A) Water B) Olive oil C) Alcohol
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TERNARY PHASE DIAGRAMS An Introduction Guna Selvaduray San Jose State University Credit for Phase Diagram Drawings: Richard Brindos Credit for scanning the phase diagrams: Brenden Croom G. Selvaduray - SJSU - Oct 2004 Utility of Ternary Phase Diagrams Glass compositions Refractories Aluminum alloys Stainless steels Solder metallurgy Several other applications G. Selvaduray - SJSU - Oct 2004 References on Ternary Phase Diagrams A. Prince‚ Alloy Phase Equilibria‚ Elsevier Publishing
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a NICOLET iS5 FT infrared spectrometer. The IR sample of a liquid is obtained on a pure liquid called a neat sample whereas solid sample was obtained with the help of an Attenuated total reflectance IR spectra. The index of hydrogen deficiency determines the saturation of a compound (double bonds‚ triple bonds or rings). Elemental analysis helps in determining the molecular formula of a compound. The boiling point of an unknown liquid sample was determined with a mini scale technique. It consists
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Water (Syllabus Topic 8.4) Our planet is rich in water‚ in solid‚ liquid and gaseous forms. Water is essential for the evolution of life and the continued existence of life on Earth. Complete the following revision passage using these words: solution‚ spheres‚ dense‚ solid‚ solute‚ biosphere‚ dissolves‚ gas‚ mass‚ volume‚ solution‚ lithosphere‚ liquid‚ solid‚ gas‚ state Water is a very useful solvent. A solvent is a substance which ____________ other substances. A substance which gets dissolved
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INTRODUCTION. SOLIDS‚ LIQUIDS AND GASES have properties that are use to describe how they behave‚ e.g. for solids it has a definite shape‚ you can hold a solid rock in your hand. You can push on a solid brick wall. Scientists say a solid is something that has shape. A solid resists any change in its shape. TASKS 2. LOOK AT THE PICTURES BELOW FOR SOLID‚ LIQUID AND GAS AND WRITE DOWN THREE PROPERTIES OF EACH? Wood as a Solid. Solid has a fixed shape Its particles are tightly held together
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table represent the same thing‚ the temperature of the solution during fractional distillation. At the start of the fractional distillation‚ before we started the fire‚ it was 25° celcius. At the end of the fractional distillation‚ when all of the liquid was gone‚ it was 99.3 degrees. This set of data is not the first time we did the fractional distillation‚ it’s actually probably the 3rd or 4th. The first time we didn’t actually record the temperature‚ we just looked for the plateaus‚ we found them
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