CHEM 100 Study Guide - Quiz Guide: Tylenol (Brand), Paracetamol, List Of Fables Characters
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Zeros can be either significant or not significant depending where they are located. Trailing zero after a decimal point always significant (. 0900) (3 sig figs) Zero between two integers always significant. Trailing zeros with no decimal point unknown. All integers and zeros are expressed in scientific notation are considered significant. Round to the smallest decimal place in #s. (47. 51 + 0. 6) (2. 31) (1. 2 - 0. 30) Decimal going to the right (1. 2 120. 0) Quantity length mass time electrical current temperature light intensity amount of substance. M k h da d c m n p. Chemistry is the study of matter and its transformations. Matter is anything that has mass or takes up space. Neither adulterated or mixed with anything else. Pure substances lose their identity and form a new substance with new physical and chemical properties during a chemical reaction. Pure substances undergo physical changes without losing its identity. A substance that cannot be broken down into other substances.
