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100

What is the correct name for the compound NaCl?

Sodium chloride

100

Which prefix is used to indicate four atoms of an element in a molecular compound?

Tetra-

100

What is the formula for carbon dioxide?

CO₂

100

  What is the correct name for the compound Fe₂O₃?

  • Iron(III) oxide
100

What suffix is added to the anion in a binary ionic compound?

 -ide

200

Which acid is represented by the formula HCl?

Hydrochloric acid

200

What is the name of the compound with the formula N₂O₅?

Dinitrogen pentoxide

200

How is the compound Ca(NO₃)₂ named?

Calcium nitrate

200

What is the name of the compound H₂O?

Water (or dihydrogen monoxide in systematic nomenclature)

200

What is the correct formula for sulfur hexafluoride?

SF₆

300

Which prefix is used for one atom in molecular compounds?

Mono- (but it’s often omitted for the first element)

300

What is the correct name for the compound K₂SO₄?

Potassium sulfate

300

How would you name HNO₂?

Nitrous acid

300

What is the charge on the sulfate ion (SO₄²⁻)?

-2

300

What is the name of the compound with the formula AlCl₃?

Aluminum chloride

400

How is the compound Mg(OH)₂ named?

Magnesium hydroxide

400

What is the formula for phosphoric acid?

H₃PO₄

400

What Roman numeral is used in the name of FeCl₃?

III (Iron(III) chloride)

400

How is P₂O₅ named?

  • Diphosphorus pentoxide
400

What is the correct name for CuSO₄?

Copper(II) sulfate

500

How do you name an acid that contains hydrogen and a polyatomic ion ending in -ate?

  • Change "-ate" to "-ic" and add "acid." (e.g., H₂SO₄ is sulfuric acid)
500

What is the name of the compound with the formula NH₄Cl?

Ammonium chloride

500

Which polyatomic ion is represented by OH⁻?

Hydroxide

500

What is the formula for acetic acid?

CH₃COOH

500

What is the name of H₂SO₃?

Sulfurous acid

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