General Chemistry Content Flashcards
1
Q
atom
A
smallest unit of an element
2
Q
molecule
A
atom bonded to at least one other atom
3
Q
ion
A
atom that has lost or gained an electron
4
Q
diatomic elements
A
H2
N2
O2
F2
Cl2
Br2
I2
5
Q
allotropes
A
elemental molecules with different formulas (O2, O3)
6
Q
Ionic compounds
A
metal and non metal
- can be polyatomic too
7
Q
molecular compounds
A
two or more nonmetals
8
Q
how to name an ionic compound:
A
- Name the metal
- Write the metals oxidation state as a Roman numeral in parenthesis
- Name the nonmetal using an “ide” ending
ex. Iron (II) chloride = FeCl2
9
Q
how to name a molecular compound:
A
- give the appropriate numerical prefix to the first element
- name the first element using its regular name on the periodic table
- give the appropriate numerical prefix to the second element
- name the nonmetal using an “ide” ending
ex. dinitrogen monoxide, N2O
10
Q
how to name binary acids:
A
- hydro-
- insert the name of element 2, replacing “-ine” with “-ic acid”
ex. hydrochloric acid, HCl
11
Q
how to name oxyacids:
A
HClO- hypochlorous acid
HClO2- chlorous acid
HClO3- chloric acid
HClO4- perchloric acid
12
Q
1005 sig. figs
A
4
13
Q
7.03 sig figs
A
3
14
Q
0.02 sig figs
A
1
15
Q
0.0026 sig figs
A
2
