chem 120 final exam study guide| 127 Questions| With Complete Solutions

chemistry correct answer: the science that tries to understand how matter behaves by studying how atoms and molecules behave scientific method correct answer: ways of learning that emphasizes observation and experimentation (self correcting) observation correct answer: we go out in nature and ask questions we measure or observe some aspect of nature hypothesis correct answer: tentative interpretation of an observation law correct answer: summarizes a large number of observations theory correct answer: model that explains and gives underlying causes for observation imprecise correct answer: quick and easy like color precise correct answer: measuring and proving like numbers scientific notation correct answer: 1x10^6 significant figures correct answer: indicates how good or bad a measurement is all non zeros are correct answer: significant interior zeros correct answer: significant trailing zeros before a decimal place correct answer: significant trailing zeros after decimal place correct answer: significant 16.5400 correct answer: 6 sig figs 130. correct answer: 3 sig figs 5003 correct answer: 4 sig figs exact numbers correct answer: unlimited sig figs 3 correct answer: unlimited sig figs multiplication and division correct answer: determined by the number with the fewest significant figures addition and subtraction correct answer: determined by decimal place tera correct answer: T 10^12 giga correct answer: G 10^9 mega correct answer: M 10^6 kilo correct answer: k 10^3