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iRubric: Assessment of Writing Chemical Formulas rubric

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Assessment of Writing Chemical Formulas 
Writing Chemical Formulas
In this assessment, will demonstrate your knowledge of key terminology used in nomenclature and how to derive chemical formulas.
Rubric Code: KB38A9
By science2013
Ready to use
Public Rubric
Subject: Chemistry  
Type: Assessment  
Grade Levels: 9-12

Powered by iRubric Writing Chemical Formulas Rubric
  Excellent

10 pts

Very Good

8 pts

Borderline

6 pts

Needs improvement

5 pts

Poor

3 pts

Knowledge 2.5 marks

Excellent

Student demonstrates a solid understanding of key terminology and can define terms in his/her own words.
2.5 marks
Very Good

Student demonstrates a solid understanding of key terminology and can mostly define terms in his/her own words.
2 marks
Borderline

Student demonstrates a fair understanding of key terminology but can barely define terms in his/her own words.
1.5 marks
Needs improvement

Student does not demonstrate an understanding of key terminology and cannot define terms in his/her own words.
1.25 marks
Poor

Did not attempt assignment
0.75 marks
Application 2.5 marks

Excellent

Student is able to accurately identify polyatomic ions and use them accurately in writing chemical formulas
2.5 marks
Very Good

Student is able to accurately identify polyatomic ions and use them accurately in writing chemical formulas 75% of the time 2 marks
Borderline

Student is fairy able to accurately identify polyatomic ions and use them accurately in writing chemical formulas 50% of the time
1.5 marks
Needs improvement

Student is not able to accurately identify polyatomic ions and use them accurately in writing chemical formulas
1.25 marks
Poor

Did not attempt assignment
0.75 marks
Understanding concept 2.5 marks

Excellent

Student understands the IUPAC naming system and is able to accurately apply it.
2.5 marks
Very Good

Student understands the IUPAC naming system and is able to accurately apply it 75% of the time.
2 marks
Borderline

Student has a fair understanding of the IUPAC naming system and is able to accurately apply it 50% of the time
1.5 marks
Needs improvement

Student does not understand the IUPAC naming system and is not able to accurately apply it.
1.25 marks
Poor

Did not attempt assignment
0.75 marks
Remembering Capacity 2.5 marks

Excellent

Student is able to identify element symbols, their valence number and use this information in writing chemical formulas
2.5 marks
Very Good

Student is able to identify element symbols, their valence number and use this information in writing chemical formulas 75% of the time 2 marks
Borderline

Student is able to identify element symbols, their valence number and use this information in writing chemical formulas 50% of the time 1.5 marks
Needs improvement

Student is able to identify element symbols, their valence number but cannot accurately use this information in writing chemical formulas
1.25 marks
Poor

Did not attempt assignment
0.75 marks



Keywords:
  • Cation, Anion , polyatomic ions , valency & its cross over .

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