Naming and Formulas

Ionic compounds are composed of what type of elements? (metals, nonmetals, both)

What is the name of this compound? CaBr₂

• calcium(II) bromide

• calcium(1) bromide

• calcium bromine

• calcium bromide

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Tags

NGSS.MS-PS1-1

• Sodium chloride

• Sodium chlorate

• Sodium carbonate

• Sodium sulfate

Answer explanation

The correct name for the ionic compound NaCl is sodium chloride. It consists of sodium (Na) and chloride (Cl) ions, making 'sodium chloride' the appropriate nomenclature. The other options refer to different compounds.

What is the name of the polyatomic ionic compound NaClO2?

• Calcium carbonate

• Calcium chlorate

• Calcium sulfate

• Calcium nitrate

Answer explanation

The compound CaCO₃ consists of calcium (Ca) and carbonate (CO₃) ions. Therefore, the correct name is calcium carbonate. The other options refer to different compounds with distinct anions.

• Potassium nitrate

• Potassium nitrite

• Potassium sulfate

• Potassium sulfite

Answer explanation

The compound KNO3 consists of potassium (K) and the nitrate ion (NO3). Therefore, the correct name is potassium nitrate. The other options refer to different compounds with distinct anions.

• Magnesium hydroxide

• Magnesium oxide

• Magnesium hydride

• Magnesium sulfate

Answer explanation

The compound Mg(OH)₂ consists of magnesium (Mg) and hydroxide (OH) ions. Therefore, its correct name is magnesium hydroxide. The other options do not match the formula provided.

What do you think the charge of Copper would be when it is attached to Bromine? (CuBr)

• +2

• -1

• -2

• +1

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Where are the transition metals located on the periodic table?

• blue square

• red square

• yellow square

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1