Collection of Gases Speed of Chemical Reactions: When a gas is released, the speed of the …
O Level Chemistry Revision Notes
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The variations in energy in a chemical reaction are due to variations between materials and reactants …
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Elements: An element is a material that cannot be separated into another. There are approximately 100 …
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Chemical to Electrical Energy: A cell or battery (a cell collection) is considered a tool that …
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What is Chemical Bonding? A chemical bond is a lifelong attraction for chemical compounds containing atoms, …
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What is Balancing Chemical Equations? A balanced chemical is that the equation contains the equal number …
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What are acids? An acid is a chemical species that gives or receives protons or hydrogen …
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What is Air? Air is nothing more than a mixture of gasses. The air in the …
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What are Redox Reactions? A redox reaction is a chemical reaction in which electrons are exchanged …
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What are Atoms? Atoms are composed of particles such as protons, neutrons, and electrons responsible for …