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Naming Molecular Compounds

Authored by Christine Henry

Chemistry

9th - 12th Grade

NGSS covered

Used 1K+ times

Naming Molecular Compounds
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This quiz focuses on molecular compound nomenclature and chemical formulas, targeting the fundamental chemistry concepts taught in high school grades 9-12. Students must demonstrate mastery of systematic naming conventions for covalent compounds, including the use of Greek prefixes (mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, deca-) to indicate the number of atoms of each element present in molecular formulas. The core concepts required include understanding the distinction between ionic and covalent bonding, recognizing that molecular compounds form between nonmetals, and applying IUPAC naming rules consistently. Students need to convert fluidly between chemical names and formulas in both directions, understand subscript notation for indicating atom quantities, and distinguish between molecular compounds and ionic compounds based on their constituent elements and bonding patterns. Created by Christine Henry, a Chemistry teacher in US who teaches grade 9-12. This quiz serves as an excellent tool for formative assessment during the chemical nomenclature unit, allowing students to practice the essential skill of translating between molecular compound names and their corresponding chemical formulas. Teachers can deploy this quiz as a warm-up activity to activate prior knowledge, assign it as homework to reinforce classroom instruction, or use it as a review session before summative assessments on chemical bonding and nomenclature. The varied question format, alternating between name-to-formula and formula-to-name conversions, provides comprehensive practice that builds student confidence with systematic naming conventions. This assessment aligns with NGSS HS-PS1-1 regarding atomic structure and periodic trends, Common Core mathematical practices involving symbolic representation, and state chemistry standards focused on chemical nomenclature and molecular compound identification.

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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

phosphorus trichloride

KCl3
PCl3
K3Cl
P3Cl

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

silicon dioxide

SO2
NaO2
SiO2
SiO

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

diphosphorus pentoxide

P2O5
PO5
P5O2
P2O6

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

SiCl4

silicon tetrachloride
silicon quadchloride
monosilicon tetrachloride
silicon chloride

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The chemical formula of sulfur hexabromide is

SBr₆
S₆Br
S(VI)Br
S6Br

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The chemical formula of carbon tetrachloride is

CCl
C₄Cl
CCl₄
C(IV)Cl

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The chemical formula of dinitrogen textroxide is

Ni₂O₄
NiO
N₂O₄
NiO₂

Tags

NGSS.MS-PS1-1

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