Fundamentals Flashcards
Fundamentals
1
Q
Ionic compounds
A
Combination of atoms where one or more electrons are completely exchanged between a metal and a nonmetal.
2
Q
Covalent compound
A
Combination of atoms where the bond between them is a pair of shared electrons, one coming from each of the atoms in the bond, allowing both of the atoms making the molecule to fill their outermost electron energy level
3
Q
Subscripst
A
Shows how many atoms of an element are in a molecule of a substance
4
Q
Coefficient
A
Shows how many molecules there are of a particular substance
5
Q
Cation
A
Positive ion
6
Q
Anion
A
Negative ion
7
Q
Physical change
A
- no new substances
- reversible
8
Q
Chemical change
A
- new substance and different chemical properties
- change is irreversible
9
Q
Phosphate
A
PO4 3-
10
Q
Sulfate
A
SO4 2-
11
Q
Carbonate
A
CO3 2-
12
Q
Nitrate
A
NO3 -
13
Q
Hydroxide
A
OH -
14
Q
Ammonium
A
NH4 +
