MODULE 1: THE CHEMICAL EARTH 3.1.1: Elements in Earth are present mostly as compounds because of interactions at the atomic level * Identify that matter is made of particles that are continuously moving and interacting Matter: anything that has mass and occupies space. Exists in three different states: solid (s)‚ liquid (l) and gas (g) The Particle Theory: “All matter is made up of small‚ indivisible particles called atoms that are continuously moving” | Solid | Liquid | Gas | Particle
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THE CHEMICAL EARTH: 1. The living and nonliving components of the Earth contain mixtures ● Construct word and balanced formulae equations of chemical reactions as they are encountered Reactants → products Chemical reaction: the way atoms are joined changes‚ atoms are not created nor destroyed‚ but are rearranged Indicators: emission of light or heat‚ odour formation of a gas formation of a precipitate colour change change in state aqueous = dissolved in water‚ an aqueous solution
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A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as dipole-dipole interactions‚ the London dispersion force and hydrogen bonding
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Safety Precautions and Lab Procedures Bret Niemeyer Abstract—The purpose of this paper is to provide you with safety precautions‚ lab procedures and reference materials to equip you with useful information in the computer electronics and technology fields. The topic is not complete‚ however it should introduce concepts and provide a framework of where to obtain important information for your safety and well-being. shut down of instruments. I. INTRODUCTION HIS DOCUMENT examines safety precautions
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only one of the two atoms involved in the reaction‚ then it’s called dative covalent bond. It is represented by a short arrow going from the electron giving both electrons towards the one providing neither. 2.1 Metallic bond is a strong electrostatic attraction between a
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Jarriette kenn D Patenio Jaymar patana Job madronal Do all ideal gases have the same molar volume? An ideal gas has the following equation of state (an equation which relates various thermodynamic properties for a substance‚ such as pressure‚ temperature and molar volume): Pv = RT P - pressure v - molar volume R - universal gas constant T - absolute temperature Clearly the molar volume depends on temperature and pressure‚ so if two gases are at different conditions then they
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INTRODUCTION Alessandro Giuseppe Antonio Volta is known as the scientist that founded the electric age. He was an Italian physicist pioneer that contributed greatly to the development of the battery. Alessandro Volta was born in Como‚ Italy in 1745. He attended a public school; in 1774 he was appointed professor of physics at the Royal School in Como. His first invention was an electrophorus; a device that produced static electricity. In 1776-77 he devoted his time to chemistry‚ studying atmospheric
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Types of Energy: Energy is the ability to do work and there are many types of energy. Mechanical Energy is the energy of motion that does the work like the wind turns a windmill. In physics‚ mechanical energy is the sum of potential energy and kinetic energy present in the components of a mechanical system. It is the energy associated with the motion and position of an object. The law of conservation of energy states that in an isolated system that is only subject to conservative forces‚ like
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Air pollution is the introduction of chemicals‚ particulate matter‚ or biological materials that cause harm or discomfort to humans or other living organisms‚ or cause damage to the natural environment or built environment‚ into the atmosphere. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletiondue to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems. Indoor
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SEMINAR REPORT-2013 CLAYTRONICS CONTENTS 1. Abstract 2. Introduction 3. Claytronics Vs Nanotechnology 4. Claytronics Hardware 5. Millimeter Scale Catoms 6. Software Research 7. An Internet in a Box 8. Nodes 9. Seamless Ensemble 10. The Research Program 11. Programming Language for
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