Chemistry Topic one test practice

Cards (15)

What is a pure substance? 
Has uniform properties and composition throughout the substance
What is a mixture? 
Has varying properties and composition, and doesn't have a chemical formula
What is an element? 
A substance made up of one type of atom
What is a compound?
A substance with one type of molecule (can't be physically seperated)
What is an atom? 
The smallest part of an element
What is a molecule? 
The smallest part of a compound (smallest thing we can call a substance) and has a chemical formula
Define metals  
The most common type of element with set distinctive properties
Define polymers  
many linked, repeated units, monomers
What are some examples of naturally occurring polymers?
silk and wool
Define ceramics
inorganic, non-metal solids
What is an example of ceramics? 
Silicon dioxide's basic structural unit, can contain different compounds
Define composites  
A combination of different materials and have widely different properties, they're created for specific desired traits/ purposes.
Name the metallic properties
conductive, lustrous, sonorous, high melting and boiling points, high density, hard, malleable, ductile, and form cations
What is an example of a mixture? 
Wrought iron has a low carbon content and used for decorative uses
What is mass spectrometry used for? 
Measuring the mass of atoms or molecules