Chemical Names and Formulas

An ion of bromine with a single negative charge has the symbol and the name

• Br¹⁺ , bromide ion.

• Br^1-, bromide ion.

• Br¹⁺ , bromium ion.

• Br^1- , bromium ion.

The platinum(II) ion and the platinum(IV) ion

• are anions.

• are polyatomic ions.

• have charges of 2+and 4+, respectively.

• have charges of 1+ and 3+, respectively.

What is the name of the compound made of zinc ions, Zn²⁺, and fluoride ions, F^1-?

• zinc difluoride

• zinc fluorate

• zinc fluoride

• zinc(II) fluorite

What is the chemical formula for the compound made of tin(IV) ions and chloride, Cl^1-, ions?

• SnCl₄

• Sn₂Cl₂

• SnCl₂

• Sn₄Cl

What is the formula for the compound made of aluminum ions, Al³⁺, and sulfate ions, SO₄^2-

• AlSO₄

• Al₃SO₄

• Al(SO₄)₃

• Al₂(SO₄)₃

How many atoms are present in one barium acetate, Ba (C₂H₃O₂)₂?

• 4

• 8

• 14

• 16

What is the formula for the compound dinitrogen tetroxide?

• N₂O₃

• N₂O₄

• N₃O₂

• N₂O

The compound Ca(NO₃)₂ contains the anion from

• calcium

• nitrogen

• nitrate

• nitrite

What is the correct name for Zn(OH)₂?

• zinc oxide hydride

• zinc (I) hydroxide

• zinc hydroxide

• zinc (II) hydroxide

What follows an element’s symbol in a chemical formula to indicate the number of atoms of that element in one molecule of the compound?

• charge sign

• superscripted number

• number in parentheses

• subscripted number