UCF Chem 1A Final Study Guide With Complete Solution 2024 Graded A+

The properties of atoms and molecules determine the properties of matter - true Atom - submicroscopic particles that constitute the fundamental building blocks of ordinary matter Molecules - Atoms bound together in specific geometrical arrangements to form molecules Chemistry - the science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules Scientific Approach - - observation - hypothesis - experimentation - laws and theories data - descriptions of a characteristic or behavior of nature Hypothesis - observations often lead to these educated guesses What makes a hypothesis good - It needs to be falsifiable or able to be proved wrong law of conservation of mass - "in a chemical reaction, matter is neither created or destroyed" Which statement best explains the difference between a theory and a law? - a law summarizes a series of related observations; a theory gives the underlying reasons for them matter - anything that occupies space and has mass (can be classified as solid, liquid, or gas) State - an objects physical form composition - the basic components that make it up solid matter - atoms or molecules that pack closely together in a fixed location. Can take the shape of a crystalline Crystalline - atoms or molecules are in patterns with long-range, repeating order Amorphous - atoms or molecules do not have any long-range Liquid matter - atoms or molecules pack around each other as closely as they do in solids, but are free to move around each other. Have a fixed volume, but not a fixed shape