Naming Covalent Compounds
Authored by Katherine Porter
Physics, Chemistry
6th - 8th Grade
NGSS covered
Used 1K+ times
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About
This quiz focuses on the nomenclature of covalent compounds, targeting the essential chemistry skills of naming binary molecular compounds and writing their chemical formulas. The content is appropriate for grades 8-9, as it requires students to master Greek numerical prefixes (mono-, di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-) and apply systematic naming rules for compounds formed between two nonmetals. Students must understand that covalent compounds consist of nonmetallic elements sharing electrons, and that the naming convention requires prefixes to indicate the exact number of each type of atom present in the molecule. The quiz assesses both directions of this skill: translating chemical formulas into proper names (like CCl₄ becoming carbon tetrachloride) and converting compound names back into correct molecular formulas (such as phosphorus trifluoride becoming PF₃). Mastery requires students to recognize when to use or omit the "mono-" prefix, understand subscript notation in chemical formulas, and distinguish between covalent and ionic compound naming systems. Created by Katherine Porter, a Physics teacher in US who teaches grade 6, 8. This comprehensive assessment serves multiple instructional purposes in the chemistry classroom, functioning effectively as a formative assessment tool to gauge student understanding before summative evaluations, or as targeted practice for students who need additional reinforcement with molecular nomenclature. Teachers can deploy this quiz as a warm-up activity to activate prior knowledge before introducing more complex compound types, assign it as homework to reinforce classroom instruction, or use it as a review session before unit tests on chemical bonding and nomenclature. The systematic progression from basic prefix recognition to complex formula-to-name conversions makes it ideal for differentiated instruction, allowing teachers to identify specific areas where individual students need additional support. This quiz aligns with NGSS MS-PS1-1 and state chemistry standards that require students to develop models and use systematic nomenclature to describe the composition of pure substances, particularly the naming conventions for molecular compounds formed by covalent bonding.
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17 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the prefix for 1?
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Name CCl4
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Name BCl3
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Give the formula for oxygen dichloride
O2Cl2
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Give the formula for phosphorus trifluoride
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Name CO2
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the prefix for 8?
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