30. Why is it necessary to use prefixes in naming covalent compounds? Please use at least THREE

complete content related sentences. (Ref: p.248-252)

Please see explanation column for answer

Explanation:

--This is because prefixes are  ” mono-” which indicates one,   “di-” which  indicates two, “tri-” indicates  three, “tetra-”indicates four, “penta-” indicates five, and “hexa-”indicates six, “hepta-” indicates  seven, “octo-” indicates eight, “nona-” indicates nine, and “deca” indicates ten.

---IT is necessary to use prefix because they show the  the number of a given element present in the compound.

when there are  no ionic charges to balance out in molecular compounds, we  use prefixes  to name the compound

eg N2O5 = dinitrogen pentoxide

- it makes it easier to naming molecular compounds for examples while indicating number of atoms presentSO2 is  sulfur dioxide  and SF6 is called sulfur hexafluoride

1)Prefixes are needed to indicate the number of atoms of each

2)if a molecule contains more than one atom of both elements, then prefixes are used for both.

3)In some names, the final a or o of the prefix is dropped to avoid awkward pronunciation.

Explanation:

NB: To buttress 2) N2O3 is dinitrogen trioxide

-To buttress 3) OsO4 is osmium tetroxide rather than osmium tetraoxide

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

answer; i believe the correct answer is (solid gold);