CHAPTER 1 Flashcards
What is an example of a composition?
Water (hydrogen and oxygen)
Give an example of a homogenous mixture
Coffee and sugar
Describe a heterogenous mixture
Fatty acids mixed with water; milk
What is an example of a crystalline solid
Salt
Give an example of an amorphous solid
Paper
Describe an element
A single type of atom
Describe a compound
A combination of different elements
What are the building blocks of elements?
Molecules (H20)
Describe a macroscopic description
Something you can see
Describe a microscopic description
atoms, molecules
What are the 5 base units (SI)?
Meter, kilogram, second, kelvin, mole
What are the 9 prefixes for the powers of ten?
Femto-, pico-, nano-, micro-, milli-, centi-, deci-, kilo-, mega-
Define mass
Quantity of matter in an object
Define weight
Force if gravity on an object
Define velocity
Change in acceleration