CHEM 1030 Lecture Notes - Lecture 1: Scientific Notation, Significant Figures, Decimal Mark

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It"s the study of (cid:373)atter a(cid:374)d its i(cid:374)teractio(cid:374)s o literally the study of everythi(cid:374)g. What is matter: anything that has mass and can take up space. Chemicals are substances that always have the same composition and properties no matter where you find it: water is technically a chemical being that it is 2h and 1 o. Scientific method: logical method to approach. 1. 4- key math skills: remembering place values, significant figures**, solving equations. Scientific notations remember that it cannot be 10 or a double digit! Make sure to add units!!! in the lab report. In general the science system is metric/ si: volume is anything that is an amount of space a substance occupies, mass. All the digits including the estimated digit ie. beaker. A zero is not significant if it is: at the beginning of a decimal number (0. 0004s, used as a placeholder in a large number without a decimal point (850000m, exact numbers.