TEST - - Chapter 1 Flashcards
What is the term for the simplest form of matter that can exist under normal lab conditions?
Elements
What is the term for matter that takes both the shape and volume of the container?
Gas
What is the term for the study of composition of substances and the changes?
Chemistry
What is the term for part of a sample with uniform composition and properties?
Phase
What is the term for the starting substances in a chemical reaction?
Reactants
What is the term for a physical blend of two or more substances?
Mixture
What is the term for a substance that is formed in a chemical reaction?
Products
What is another term for a homogeneous mixture?
Solution
What is a term for the quality or condition of a substance that can be observed without changing the composition?
Physical property
Which is a compound?
Oxygen - Carbon - Water - Hydrogen
Water
What kind of change occurs when iron and oxygen combine to form iron oxide?
A chemical change occurs
What can help you determine a physical change from a chemical change?
Mass is conserved
What are three characteristics of a substance in the liquid state?
Able to flow
Definite volume
Not easily compressed
When does a chemical change occur in a piece of wood?
When is is burned or decayed
What are some examples of a physical change?
Cutting, freezing, condensing, grinding, melting, boiling