Chemical Formulas Flashcards
1
Q
Chemists use ______ to express the composition of molecules and ionic compounds in terms of chemical symbols. By composition we mean not only the elements present but also the ratios in which the atoms are combined.
A
Chemical Formulas
2
Q
A __________ shows the exact number of atoms of each element in the smallest unit of a substance.
A
Molecular Formulas
3
Q
The _________ tells us which elements are present and the simplest whole-number ratio of their atoms, but not necessarily the actual number of atoms in a given molecule.
A
Empirical Formulas
