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Chapter 1: Fundamentals of Chemistry, Experimental science relies on the…
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Standard scientific unit for measuring large quantity of very small entities such as atoms, molecules or ions
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atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical properties (same atomic no., different mass no.).
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smallest unit of matter that made up of three subatomic particles mainly proton, neutron and electron
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Multiplication and Division The final answer has the same number of significant figures as the number with the least number of significant figures
Addition and Subtraction : The final answer has the same number of decimal places as the number with the least number of decimal places
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