Atomic Structure and Properties
Atomic Structure and Properties
1.3 Elemental Composition of Pure Substances
1.3 Elemental Composition of Pure Substances
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Atomic Structure and Properties
1.3 Elemental Composition of Pure Substances
Essential Knowledge:
*These are taken directly from College Board
◼ Some pure substances are composed of individual molecules, while others consist of atoms or ions held together in fixed proportions as described by a formula unit. (SPQ-2.A.1)
◼ According to the law of definite proportions, the ratio of the masses of the constituent elements in any pure sample of that compound is always the same. (SPQ-2.A.2)
◼ The chemical formula that lists the lowest whole number ratio of atoms of the elements in a compound is the empirical formula. (SPQ-2.A.3)
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