Which of the following is an ionic compound:

• CH₄

• I₂

• LiBr₂

• CO₂

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-3

Name the following ionic compound: BeCl₂

• beryllium chlorine
• beryllium II chloride
• beryllium chloride
• beryllium dichloride

Name the following ionic compound: NaF

• nitrogen fluorine

• sodium fluoride

• nitrogen fluoride

• sodium fluorine

Tags

NGSS.MS-PS1-1

Which of these combinations is an ionic compound made of?

• metal and metal

• nonmetal and nonmetal

• metal and nonmetal

• cation and cation

What would be the proper chemical formula for combining Al³⁺ and Cl^- :

• AlCl₃

• Al₃Cl

• AlCl

• Al₃Cl₃

Tags

NGSS.HS-PS1-2

MgI₂

• Magnesium Iodine

• Monomagnesium di-iodide

• Magnesium iodide

• Magnesium tetraiodide

Tags

NGSS.MS-PS1-1

N₂O has the name

• Nitrogen Oxide

• Dinotrogen dioxide

• Nitrous dioxide

• Nitrogen Oxygen

Ionic compounds are written with

• cation (+ ion) first then anion (- ion)
• anion (- ion) first then cation (+ ion)
• either way is fine
• polyatomic ions first

The correct chemical formula for magnesium phosphide is

• MgP

• Mg₂P₃

• Mg₃P₂

• Mg₃(PO₄)₂

Tags

NGSS.HS-PS1-1

When adding a subscript to a polyatomic ion, you should...

• multiply any subscripts on the polyatomic ion by the subscript you are adding

• put parentheses around the polyatomic ion before adding a subscript

• write the new subscript next to any subscripts on the polyatomic ion

• put the polyatomic ion in square brackets before adding the subscript