Ionic Compounds and Metals -Formulas and Names for Ionic Compounds

Multiple Choice

Why is it important for the system of naming and writing formulas for chemical compounds to be standardized?

• It allows scientists to communicate easily and avoid confusion.

• It makes chemistry more difficult to learn.

• It limits the creativity of scientists.

• It only benefits students, not scientists.

Multiple Choice

How many atoms of magnesium and chlorine are needed to form a formula unit of the ionic compound?

• 1 magnesium and 1 chlorine

• 1 magnesium and 2 chlorine

• 2 magnesium and 1 chlorine

• 2 magnesium and 2 chlorine

Multiple Choice

Which of the following elements forms a 2+ monatomic ion?

• Na

• Mg

• Al

• K

Multiple Select

Select all the groups that contain elements which form monatomic ions with a positive charge.

• Group 1

• Group 2

• Group 3

• Group 4

Multiple Choice

Which group of elements forms ions with a 2- charge according to the table?

• Group 1

• Group 2

• Group 16

• Group 17

Multiple Choice

Which of the following is NOT a rule for writing the chemical formula of an ionic compound?

• The symbol of the cation is written first.

• The symbol of the anion is written second.

• Use a subscripted number to indicate the number of ions of each element.

• The symbol of the element with the higher atomic number is written first.

Multiple Choice

Which of the following is the correct chemical formula for the compound formed between magnesium and nitrogen?

• MgN

• Mg₂N₃

• Mg₃N₂

• MgN₂

Multiple Select

Based on the table of transition metals, which groups commonly form ions with a +3 and +2 oxidation state? Select all that apply.

• Group 5

• Group 6

• Group 9

• Group 13

Multiple Choice

Which statement best describes polyatomic ions?

• They are ions made up of only one atom.

• They act as multiple ions in a compound.

• They are ions made up of more than one atom and act as a single ion.

• They do not have a net charge.

Multiple Choice

Which of the following is the correct formula for the polyatomic ion sulfate?

• SO₃^2-

• SO₄^2-

• S₂O₃^2-

• HSO₄^-

Multiple Select

Which of the following are correct names for the given formulas? Select all that apply. A) NaNO₃ - Sodium nitrate B) Ca(ClO₃)₂ - Calcium chlorate C) NaNO₂ - Sodium nitrate D) Ca(ClO₂)₂ - Calcium chlorite

• A) NaNO₃ - Sodium nitrate

• B) Ca(ClO₃)₂ - Calcium chlorate

• C) NaNO₂ - Sodium nitrate

• D) Ca(ClO₂)₂ - Calcium chlorite

Multiple Choice

According to the rules for naming ionic compounds, what suffix is added to the root of a monatomic anion's name?

• -ate

• -ite

• -ide

• -ous

Multiple Choice

LiBr is called

• lithium bromine

• lithium (I) bromine

• lithium bromide

• lithuim (I) bromide

Multiple Choice

Which of these combinations is an ionic compound made of?

• Metal and Metal

• Nonmetal and Nonmetal

• Metal and Nonmetal

• Cation and Cation

Multiple Choice

Name the following ionic compound: BeCl₂

• beryllium chlorine

• beryllium II chloride

• beryllium chloride

• beryllium dichloride

Multiple Choice

What is the name of the compound Sc(OH)₃?

• Scandium (III) hydroxide

• Scandium (I) hydroxide

• Scandium (II) hydroxide

• Scandium hydroxide

Multiple Choice

The name of the compound Ca₃(PO₄)₂

• calcium phosphate

• tricalcium diphosphate

• calcium phosphorus oxide

• calcium phosphide