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chem Q5 (3.1)
| Question | Answer |
|---|---|
| stoichiometry | the science of the numerical relationships between elements and compounds |
| chemical formulas | symbolic representations that specify the elements present in a compound and the relative numbers of atoms of each element present |
| molecular, ionic | two major categories of chemical compounds |
| molecular compounds | compounds made of groups of two or more atoms linked together |
| molecules | groups of two or more atoms linked together by chemical bonds to form distinct units |
| ionic compounds | compounds made of electrically charged particles |
| ions | electrically charged particles |
| molecular formula | tells how many of each type of atom are found in an actual molecule of that substance |
| empirical formula | shows only the simplest ratio of atoms in a compound |
| formula unit (identical to empirical formula) | simplest ratio of atoms in an ionic compound |
| -ide | added to the end of the second element's name when naming chemical compounds |
| molecular compounds containing two nonmetals | the method of naming compounds we learn is used mostly to name what |
| mono- | one atom prefix |
| di- | two atom prefix |
| tri- | three atom prefix |
| tetra- | four atom prefix |
| penta- | five atom prefix |
| hexa- | six atom prefix |
| hepta- | seven atom prefix |
| octa- | eight atom prefix |
| nona- | nine atom prefix |
| deca- | ten atom prefix |