Naming Ionic Compound and Writing Formulas

Na₂S

• Sodium Sulfide
• Sodium Sulfate
• Sodium Sulfite
• Disodium Sulfide

What is the formula for magnesium chloride?

• MgCl
• Mg₂Cl
• MgCl₂
• Mg(ClO₃)₂

Tags

NGSS.MS-PS1-1

Name this compound: 
NaBr

• Bromide sodide
• Sodium bromide
• Sodium bromate
• Sodium bromite

Name this compound: 
KF

• Potassium fluoride
• Potassium fluorite
• Fluorine potasside 
• Potassium fluorate

Ionic compounds are written with

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

Ca⁺², O^-2

• CaO
• OCa
• Ca_-2O₊₂
• Ca₂O₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The correct chemical formula for magnesium phosphide is

• MgP
• Mg₂P₃
• Mg₃P₂
• Mg₃(PO₄)₂

Tags

NGSS.MS-PS1-1

The name of FeCl₂ is

• iron chloride
• iron (II) chloride
• iron (I) chloride
• iron dichloride

Ionic compounds are bonds between

• Metals and Metals
• Metals and Nonmetals
• Nonmetals and Nonmetals
• None of the above

Tags

NGSS.HS-PS1-3

The roman numeral in a compound name indicates ___________________.

• the number of metal ions
• the charge of the metal ion
• nothing
• the number of total ions