Question

Question 13 (6 points)
Which of the following is true about naming Ionic compounds? Multi select 3

a
If the cation is a d-block element, then its oxidation state is Witten after the element name inside parenthesis as 1,2,3 and so on.
b
the names of Polyatomic ions stay un changed in the name
c
prefixes are used to indicate number of atoms of each element present
d
the name of the element or polyatomic ion forming the cation is written first
e
if the anion is monoatomic, then the name ends with an -ide ending
Question 14 (3 points)
Which of the foolwing is FALSE about Ionic compounds?

a
when an ionic lattice is broken, the atoms remain ionized ( stay as ions)
b
when Ionic compounds dissolve in water they form electrolytes if the solution conducts electricity
c
ionic compounds are brittle
d
Lattice energy is the energy needed to break one mole of ionic bonds
e
Ionic compounds form lattice like structures because of electrostatic attractions to neighboring ions with opposite charges.

Answer 1

Question 13 — true (choose 3): a, d, e
- a: True — for many d‑block (transition) metal cations the oxidation state is written in Roman numerals in parentheses (e.g., iron(III)).
- d: True — the cation (element or polyatomic ion) is named first.
- e: True — monoatomic anions get the “-ide” ending (e.g., chloride, oxide).

(Option b is also generally true in practice, but the question asks for three selections; option c is false — prefixes are used for covalent molecular compounds, not for ionic formulas.)

Question 14 — FALSE: a
- a is false as stated: breaking an ionic lattice into neutral atoms requires electron transfer; the usual result of breaking/dissolving an ionic solid is separated ions (not neutral atoms), so the phrasing is misleading/incorrect. Options b–e are correct statements about ionic compounds.