Ionic
Molecular
Acids
Periodic Table
Prefixes
100

What is the formula for calcium chloride?

CaCl₂

100

What is the formula for carbon dioxide?

CO₂

100

What is the name of HCl (aq)?

Hydrochloric acid

100

Which group contains the noble gases?

Group 18

100

Deca

10

200

Name the compound with the formula Na₂SO₄.

Sodium sulfate

200

Name the compound PCl₃.

Phosphorus trichloride

200

Name the acid H₂SO₄.

Sulfuric acid

200

What is a common property of alkali metals (Group 1)?

They are highly reactive and form +1 ions.

200

Mono

1

300

What is the charge of iron in Fe₂O₃?

+3 (Iron(III) oxide)

300

Name the molecular compound with the formula N₂O₄.

Dinitrogen tetroxide

300

What is the formula for nitric acid?

HNO₃

300

Which group contains elements that form salts with metals and are very reactive nonmetals?

Halogens (Group 17)

300

Tri

3

400

Write the name for Mg(NO₃)₂.

Magnesium nitrate

400

What is the name of SO₂?

Sulfur dioxide

400

Name the acid H₃PO₄.

Phosphoric acid

400

What group contains elements with two valence electrons and forms +2 ions?

Alkaline earth metals (Group 2)

400

Nona

9

500

What is the formula for aluminum oxide?

Al₂O₃

500

Write the formula for dinitrogen monoxide.

N₂O

500

What is the name of H₂CO₃?

Carbonic acid

500

Which group contains transition metals known for forming colorful compounds?

Groups 3–12

500

Hexa

6

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