Name this compound: 
NaBr

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

Tags

NGSS.MS-PS1-1

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

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Tags

NGSS.MS-PS1-1

What formula results when Ca⁺²  and  Br^- ions bond?

• Ca₂Br₂
• CaBr
• Ca(br)₂
• CaBr₂

Tags

NGSS.MS-PS1-1

What would be the proper chemical formula for combining Al³⁺ and SO₄^2- :

• AlSO₄

• Al(SO₄)₃

• Al₂SO₄

• Al₂(SO₄)₃

Tags

NGSS.HS-PS1-2

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1

Na ⁺  and  S ^-2

• Na₂S
• NaS₂
• Na₂S₂
• NaS

Tags

NGSS.MS-PS1-1

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

Tags

NGSS.HS-PS1-1

What is the correct formula for calcium sulfate?

• CaS

• CaSO₄

• Ca₂S

• Ca₂SO₄

What is the correct formula for magnesium oxide?

• MgO
• MgO₂
• Mg₂O
• Mg₂O₂

Tags

NGSS.MS-PS1-1

What is the correct formula for aluminum sulfide?

• AlS
• AlS₂
• Al₂S₃
• Al₃S₂

Tags

NGSS.HS-PS1-2