1.1 Intro to General Chem Flashcards
Chemical Properties
Properties evident when going through a chemical reaction
Physical Properties
May be observed and measured without changing the identity of the sample
Chemical Reactions
Substances combine to form new substances
Chemistry
The study of matter, energy, and their interactions
Compound
Formed when two or more atoms form a chemical bond
Element
Identified by the number of protons
Energy
The ability to do work
Extensive Properties
Changes with the amount of matter in a sample
Intensive Properties
Does not change as the amount of matter changes
Heterogeneous Mixture
The components are not uniform
Homogeneous Mixture
Compositions is uniform throughout the mixture
Mixture
Made by combining two or more different materials
No chemical reaction
Pure Substance
Only made up of one atom or molecule
Scientific Law
Summary of a large quantity of information
List each step in the Scientific Method
Make an observation
Formulate hypothesis
Design and perform experiments
Draw conclusions and report findings