CHEM 10 Study Guide - Midterm Guide: Antoine Lavoisier, Decimal Mark, Stainless Steel

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Atoms and molecules are tiny particles that compose all common matter. Atoms: the smallest building block of matter. Molecules: atoms bond together to form molecules: lavoisier. A french chemist who measured the property of mass in the process of combustion. Developed the law of conservation of mass, which states, in a chemical reaction matter is neither created nor destroyed. : the scienti c method. The scienti c method emphasizes observation and experimentation as the way to understand the world: observation: involves the measurement or description of some aspect of the physical world, hypothesis: a tentative interpretation or explanation of the observations. A good hypothesis is falsi able, which means that further testing has the potential to prove it wrong. Hypotheses are tested by experiments: experiment: highly controlled observations designed to validate or invalidate hypotheses. Provide a broader and deeper explanation for observations and laws and are models of the way nature is.