4th 9 Weeks Test Review

A correct name for N₂O₃ is –

• nitrogen trioxide.

• nitrogen dioxide.

• dinitrogen trioxide.

• dinitrogen oxide.

Tags

NGSS.MS-PS1-1

What is the correct name for Fe₂O₃?

• Iron(V) oxide

• Iron(III) oxide

• Iron(I) oxide

• Iron(II) oxide

Two major categories of chemical compounds are _____ and _____

• Atomic; synthesis

• Organic; allotropic

• Ionic; covalent

• Main; covalent

Which is the correct formula for dinitrogen monoxide?

• N₂O₃

• N₂O

• NO

• NO₂

Tags

NGSS.MS-PS1-1

When potassium reacts with iodine, they form potassium iodide. Which of the following correctly describes this compound?

• They form the compound KI, which is covalent.

• They form the compound PI₃, which is covalent.

• They form the compound KI, which is ionic.

• They form the compound PI₃, which is ionic.

Tags

NGSS.MS-PS1-1

The correct formula for nickel(II) oxide is —

• Ni₂O.

• NiO.

• NiO₂.

• Ni₃O₂.

Tags

NGSS.MS-PS1-1

What is the formula for titanium(II) oxide?

• TiO₂

• TiO

• Ti₂O

• Ti₂O₃

The correct chemical formula for iron(II) sulfide is –

• FeSO₄.

• FeS.

• Fe₂(SO₄)₃.

• Fe₂S₃.

Tags

NGSS.MS-PS1-1

Which formula represents copper(I) oxide?

• CuO₂

• CuO

• Cu₂O

• Cu₂O₂

Tags

NGSS.MS-PS1-1

Which is the formula for magnesium sulfide?

• MgSO₃

• MnS

• MnSO₃

• MgS

Tags

NGSS.MS-PS1-1