Chemistry Exam review Flashcards
1
Q
Compound
A
2 things together
2
Q
Mixtures
A
more than one
3
Q
Elements
A
One thing
4
Q
pure substance
A
only one substance
5
Q
BeF2 compound or element? and how many atoms
A
compound
Be- 1 F- 2
6
Q
Ar compound or element? How many atoms
A
Element
-1
7
Q
C12 H11 O12 Compound or element? how many atoms
A
Compound
c -12 h -11 O-12
8
Q
Physical properties
A
Properties that don’t change the substance into something new.
9
Q
Quantitative physical properties
A
Properties that are measured using numbers and units
10
Q
quantitate physical properties
A
Properties describing using the 5 senses.
11
Q
Most important physical properties (5)
A
Coulor, state
-solid, liquid + gas
12
Q
Crystal form
A
Crystal or powdery
13
Q
Hardness
A
Resist being dented or scratched
14
Q
Solubility
A
Dissolve
15
Q
Malleability
A
bent or flattened
