2 Flashcards
1
Q
Pure substance
A
1 type of compound
Can’t be physically separated
Unique set of physical properties
2
Q
Mature
A
More than 1 type of compound
Can be physically separated
Change based on physical properties
3
Q
Mechanical mixture
A
Heterogenous mixture (you can tell there’s more than one because they separated into their separate layers)
4
Q
Order of phases
A
Solid Melting Liquid Evaporation Gas
5
Q
Ionic
A
Usually solid
High melting point
Conduct electricity in water
6
Q
Molecular (covalent)
A
Gas or liquid
Melting point usually low
Don’t conduct electricity
7
Q
Acids
A
Dissolve in water to form “H” ions
Sour/tarte taste
Sting skin
React with mist metals
8
Q
Base
A
Form “OH” ions Bitter taste Slippery in skin Doesn’t react to most metals Doesn’t transfer a lot
