Principles of Chemistry A Molecular Approach Nivaldo J Tro Test Bank/Principles of Chemistry: A Molecular Approach Chapter 1.

Principles of Chemistry A Molecular Approach Nivaldo J Tro Test Bank/Principles of Chemistry: A Molecular Approach Chapter 1. By lw Accuracy - CORRECT ANSWERS-A measure of how close measurements are to the correct value. Amorphous Solids - CORRECT ANSWERS-solids that have particles randomly distributed w/o any long-range pattern (plastic, glass, charcoal) Atom - CORRECT ANSWERS-Smallest piece of an element that maintains its identity through all chemical and physical changes Chemical Change - CORRECT ANSWERS-Changes that alter the composition of matter During this change, present atoms rearrange into new molecules, but all original atoms are still present (ex. rusting, burning, dyes fading) Chemical Property - CORRECT ANSWERS-One that substance displays only by changing its composition Chemistry - CORRECT ANSWERS-the study of matter, its properties, its structures, and its transformation from one form to another, plus any accompanying heat effects. Compound - CORRECT ANSWERS-A substance composed of two or more elements in fixed proportions. Crystalline solids - CORRECT ANSWERS-particles arranged in patterns w/ long-range repeating order (salt, diamonds, sugar)