CHE 1300 Study Guide - Quiz Guide: Antoine Lavoisier, Meteorology, International System Of Units
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Chemistry - science that seeks to understand what matter does by studying what atoms & molecules do. Observation - way to acquire info about nature. Theories (models) are our attempt to explain why does something happen. **classify each statement as an observation, a law, or a theory. ** will be on test!! (a) when a metal is burned in a closed container, the mass of the container and its contents does not change. Observation (b) matter is made of atoms. Theory (c) matter is conserved in chemical reactions. Law (d) when wood is burned in a closed container, its mass does not change. Measured mass of each contained & its containers before & after burnings. Noted that there was no change in mass during combustion. Explained law of conservation of mass by proposing that all matter was composed of. John dalton (1766-1844) - english chemist small, indestructible particles called atoms.
