Equations N Stuff Flashcards
1
Q
Physical
A
Change in identity and composition, state can change substance does not
2
Q
Chemical change
A
Old bonds broken and new bonds formed, atoms rearranged to form something new
3
Q
Coefficient
A
Number to tell you how many of each atom there is
4
Q
Symbols (s) (g) (l) (aq)
A
S solid
Aq aqueous
L liquid
G gas
5
Q
Why balanced?
A
Must be =
6
Q
Combination/ synthetic reaction
A
A+b = ab
Form to equal one
7
Q
Decomposition
A
Ab = a+b one form to break and make two
8
Q
Single displacement
A
A+ bc = ac+ b
9
Q
Double displacement
A
Ab+dc = ad+cb
10
Q
Combustion
A
Hydrocarbon+ o2 = H2O + CO2
11
Q
Precipitate
A
Solid that is insoluble
12
Q
Solute
A
A soluble substance
13
Q
Solvent
A
Liquid that dissolves solute
14
Q
Insoluble
A
Not able to disolve
15
Q
Soluble
A
Able to dissolve
