Oxidation numbers in compounds
What is the oxidation state of Phosphorus in this compound:
P2O3
+3
When is a compound ionic?
When a metal and non metal elements are combined
When is a compound covalent?
When a non metal + a non metal elements are combined.
in ionic compounds it is (name metal)+(non metal + ___)
ide
How many covalent bonds can Carbon make?
4
The combination of the elements oxidation numbers in a compound should be equal to=
0
When are roman numbers used to name a compound after the name of the metal?
In transition metals
Name the following compound:
N2O4
dinitrogen tetroxide
the less electro negative atom comes ____
first
What is the prefix for 6?
hexa
The oxidation state of hydrogen when combined with metals.
-1
Name the following compound:
FeO
Iron (II) oxide
What is the following compound?
phosphorus pentachloride
PCl5
Which groups when combined with hydrogen are named like ionic compounds?
Groups 6,7
What is the formula for ammonia?
NH3
Oxygen oxidation number when combined with Fluorine
+2
Which is the following compound:
Barium iodide
BaI2
What happens in covalent bonding?
The atoms share at least one Pair of electrons
When oxygen is paired with an element from group 1A, with which element is oxygen a peroxide?
Na - Sodium
A bond formed by an attraction between positively charged metal ions and the electrons around them.
Metallic bond
What would be the oxidation numbers of the following elements in this compound?
K2O
+1 , -2
Are ionic compounds water soluble?
yes
Name the following compound:
Cl2O
dichlorine monoxide
What id the oxidation number of group 7A?
-1
Which is the following compound?
Strontium bromide
SrBr2