EXIT: Ionic Compounds

Organize the following ions into cations and anions.

Groups:

(a) Cations (+)

,

(b) Anions (-)

• Nitride

• Aluminum

• Chloride

• Magnesium

• Potassium

• Floride

• Calcium

• Lithium

• Sulfide

• Bromide

Tags

HS-PS1-A-2

HS-PS1-A-3

Select all correct combinations of monoatomic ionic formulas.

• Na2Br

• MgCl

• Al2O3

• SrS

Tags

HS-PS1-A-4

Organize the following polyatomic ions into their correct charge category

Groups:

(a) -1 Poly Ions

,

(b) -2 Poly Ions

,

(c) -3 Poly Ions

,

(d) +1 Poly Ions

• (NO3)-

• (NH4)+

• (CH3COO)-

• (PO4)-3

• (SO4)-2

• (CO3)-2

Tags

HS-PS1-A-3

What is the formula of the following ionic compound: Ammonium Carbonate

• NH4(CO3)

• Al(ClO3)3

• (NH4)2(CO3)

Answer explanation

Li+ and Cl-

Tags

HS-PS1-A-4

What is the name of the following ionic compound: Na2(CO3)

• Sodium Carbonate

• Sodium Carbonite

• Sodium II Carbonate

Answer explanation

When paired with a metal, the nonmetals are changed to -ide. Bromide, chloride, floride.

Tags

HS-PS1-A-4

What is the name of the following ionic compound: Ca(NO3)2

• Calcium Nitride

• Calcium Nitrite

• Calcium Nitrate

Answer explanation

When paired with a metal, the nonmetals are changed to -ide. Bromide, chloride, floride.

Tags

HS-PS1-A-4

What is the chemical formula for Calcium Nitrate?

• Ca(NO₃)₂

• CaNO₃

• Ca₂NO₃

• Ca₂(NO₃)₂

Answer explanation

The chemical formula for Calcium Nitrate is Ca(NO3)2. This is represented by the formula Ca(NO3)2, which signifies one atom of calcium (Ca) and two nitrate ions (NO3). The subscript '2' after the parenthesis indicates that there are two nitrate ions for each calcium ion in the compound.

The name of the compound Ca₃(PO₄)₂

• calcium phosphate

• tricalcium diphosphate

• calcium phosphorus oxide

• calcium phosphide

What is the name of the compound Na₂(SO₄)?

• Sodium sulfate

• Sodium sulfide

• Sodium sulfite

• Sodium sulfuroxide

The proper formula for magnesium hydroxide:

• MgOH
• Mg₂OH
• Mg(OH)₂
• Mg₂OH₂