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Details Title: Biology Midterms 2004 Description: Biology Total Flash Cards: 13 Created: 01/07/2004 15:45:56	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Atom Definition one of the minute indivisible particles of which according to ancient materialism the universe is composed Term Molecules Definition the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms Term Compounds Definition something formed by a union of elements or parts; especially : a distinct substance formed by chemical union of two or more ingredients in definite proportion by weight Term Periodic Table Definition an arrangement of chemical elements based on the periodic law Term Atomic Theory Definition a theory of the nature of matter: all material substances are composed of minute particles or atoms of a comparatively small number of kinds and all the atoms of the same kind are uniform in size, weight, and other properties Term John Dalton Definition British chemist and physicist, who developed the atomic theory upon which modern physical science is founded Term Element Definition any of the fundamental substances that consist of atoms of only one kind and that singly or in combination constitute all matter Term Gas Definition a fluid (as air) that has neither independent shape nor volume but tends to expand indefinitely Term Liquid Definition a fluid (as water) that has no independent shape but has a definite volume and does not expand indefinitely and that is only slightly compressible Term Solid Definition a substance that does not flow perceptibly under moderate stress, has a definite capacity for resisting forces (as compression or tension) which tend to deform it, and under ordinary conditions retains a definite size and shape b : the part of a solution or suspension that when freed from solvent or suspending medium has the qualities of a solid Term Molecular Formula Definition a chemical formula that gives the total number of atoms of each element in each molecule of a substance Term Structural Formula Definition an expanded molecular formula showing the arrangement within the molecule of atoms and of bonds Term Single Bond Definition a chemical bond in which one pair of electrons is shared by two atoms in a molecule especially when the atoms can share more than one pair of electrons