Multiple Choice
Which of the following is the correct chemical formula for carbon tetrachloride?
60
views
3. Chemical Reactions
Naming Molecular Compounds
Multiple Choice
Which of the following is the correct name for the molecular compound with the formula N_2O_3?
A
dinitrogen trioxide
B
dinitrogen pentoxide
C
nitrogen trioxide
D
nitrogen dioxide
Verified step by step guidance1
Identify that the compound N_2O_3 is a molecular (covalent) compound composed of two nonmetals: nitrogen and oxygen.
Recall the naming rules for molecular compounds: use prefixes to indicate the number of atoms of each element present. The prefixes are: mono- (1), di- (2), tri- (3), tetra- (4), penta- (5), etc.
Apply the prefixes to each element in the formula: since there are 2 nitrogen atoms, use 'di-' before nitrogen; since there are 3 oxygen atoms, use 'tri-' before oxide (oxygen).
Combine the prefixes with the element names, remembering to change the second element's ending to '-ide'. This gives 'dinitrogen trioxide'.
Verify that the name matches the formula N_2O_3 and that no prefixes are omitted or incorrectly applied.
Related Videos
Related Practice
