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⁺²P^-3

• PCa
• P₂Ca₃
• CaP
• Ca₃P₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

K⁺, O^-2

• KO
• K₂O
• K_-2O₂
• O₂K

Tags

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

What is the correct name for HBr?

• Bromic acid
• Hydrobromic acid
• Hydrogen bromate
• Hypobromic acid

What do atoms of metals tend to do with their valence electrons when bonding with non-metals?

• share them
• donate them
• keep them and accept others
• keep them and give others

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct name for MgI₂?

• Manganese IV iodide
• Manganese diiodide
• Magnesium iodide
• Magnesium diiodide

Tags

NGSS.HS-PS1-2

What is the correct formula for dinitrogen tetroxide?

• N₃O₃
• (N₂)₂(O₄)₃
• N₂O₄
• N₄O₂

Tags

NGSS.MS-PS1-1

What type of compound is made up of a metal and a nonmetal?

• Ionic
• Covalent
• Polyatomic

Tags

NGSS.HS-PS1-1