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Chemical equations represent chemical reactions using symbols and letters. This tutorial will teach you what the properties of chemical equations are, how to read an equation as well as how to balance an equation. Overview Chemical equations and reactions – how do equations represent the differences in substances before and...
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A chemical reaction is represented by a chemical equation that involves ions, atoms and molecular formulas. Use this resource to will learn about the main components of a chemical equation, and how to write and balance chemical equations. The main components of a chemical equation are: Reactants – the starting...
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Do you feel confident about writing balanced equations for chemical reactions? Test yourself with a quiz. Your turn – chemical equations For questions 1—5, identify the reactants and products in the chemical equations. \(\ce{2H}_{2}+\ce{O}_{2}\rightarrow2\ce{H}_{2}\ce{O}\) \(\ce{CH}_{4}+2\ce{O}_{2}\rightarrow\ce{CO}_{2}+\ce{H}_{2}\ce{O}\) \(2\ce{Fe}_{2}\ce{O}_{3}+3\ce{C}\rightarrow4\ce{Fe}+3\ce{CO}_{2}\) \(\left(\ce{NH}_{4}\right)_{2}\ce{Cr}_{2}\ce{O}_{7}\rightarrow\ce{Cr}_{2}\ce{O}_{3}+4\ce{H}_{2}\ce{O}+\ce{N}_{2}\) \(\ce{CaCO}_{3}\rightarrow\ce{CaO}+\ce{CO}_{2}\) For questions 6—10, write balanced equations for the chemical reactions. Ammonia gas...
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Redox reactions, which involve the transfer of electrons between substances, are fundamental to understanding processes like combustion, respiration, and corrosion. Test your understanding of redox reactions with a quiz. Your turn – redox reactions For questions 1—10, determine the oxidation numbers for the elements indicated. \(\ce{F}\) in \(\ce{F}_{2}\) \(\ce{Ca}\) in...
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A redox reaction, short for reduction–oxidation reaction, is a chemical process in which one substance loses electrons (oxidation) while another gains electrons (reduction). Keep reading to learn more. Oxidation and reduction Redox reactions involve the net movement of electrons from one reactant to the other. This causes some reactants to...
