Chemical Names and Formulas Chapter Exam

When the two elements in a binary molecular compound are both in the same group, which element is listed first?

• The element with the lowest atomic mass

• They are listed alphabetically

• The element in the period with the smaller number

• The element in the higher period

What is a binary compound?

• A compound composed of only two elements.

• A compound composed of two atoms.

• A molecule composed of two atoms.

• A compound composed of at least two elements.

• A compound composed of at least two atoms.

How do Ca2+ and phosphate, (PO4) 3- combine to make an electrically neutral compound?

• Two Ca2+ ions combine with three (PO4)3- ions. ions

• Three Ca ions combine with two P ions and eight O ions.

• You add all of the electrons together and divide by two.

• Three Ca2+ ions combine with two (PO4)3- ions.

What is the best definition of a binary molecular compound?

• A chemical made of two different types of non-metal atoms covalently bonded together through the sharing of electrons.

• A compound made of two oppositely charged ions.

• A compound made from the mutual attraction of electrons to a positive nucleus.

• A compound made from two atoms of the same kind.

What is the proper prefix for an element that occurs four times in a compound?

• Tetra-

• Quadra-

• Penta-

• Forti-

What is the proper name for SO2?

• Sulfide dioxide

• Monosulfur dioxide

• Sulfur dioxide

• Sulfurous oxide (II)

What is the proper name for the compound NO?

• Mononitrogen oxide

• Nitrogen monoxide

• Nitrogenous oxide

• Nitrogen (III) oxide

What is the correct name for MgCl2?

• Magnesium (II) chloride

• Magnesium chloride

• Magnesium chloride (II)

• Magnesium chlorite

If an ionic compound contains a transition metal, Roman numerals are used to determine the _____.

• version of the isotope

• version of the ion

• order of appearance

• charge on the ion

What is the correct name for Fe(OH)3?

• (III) iron hydroxide

• Iron hydroxide (III)

• Iron (III) hydroxate

• Iron (III) hydroxide