Chemistry - Unit 6 Test - Part 1

What is a tightly-bound group of atoms that behaves as a unit and carries a net charge?

• cation
• binary compound
• polyatomic ion
• monatomic ion

When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a ____.

• prefix
• suffix
• roman numeral following the name
• superscript after the name

The nonmetals in Groups 6A and 7A ____.

• lose electrons when they form ions
• all have ions with a –1 charge
• end in -ate

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An -ate or -ite at the end of a compound name usually indicates that the compound contains ____.

• fewer electrons than protons
• neutral molecules
• only two elements
• a polyatomic anion

Which of the following is true about the composition of ionic compounds?

• They are composed of anions and cations.
• They are composed of anions only.
• They are composed of cations only.
• They are formed from two or more nonmetallic elements.

Which element, when combined with fluorine, would most likely form an ionic compound?

• lithium
• carbon
• phosphorus
• chlorine

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Molecular (covalent) compounds are usually ____.

• composed of two or more transition elements
• composed of positive and negative ions
• composed of two or more nonmetallic elements
• exceptions to the law of definite proportions

In naming a binary covalent compound, the number of atoms of each element present in the molecule is indicated by ____.

• Roman numerals
• subscripts
• prefixes
• suffixes

When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix ____.

• -ous
• -ic
• -ate
• -ite

What does an -ite or -ate ending in a polyatomic ion mean?

• Oxygen is in the formula.
• Sulfur is in the formula.
• Nitrogen is in the formula.
• Bromine is in the formula.