Chemical Formulas Worksheet
A worksheet for 8th-grade science students to practice understanding and writing chemical formulas.
Includes
Standards
Topics
Chemical Formulas Worksheet
Name:
Date:
Score:
Read each question carefully and provide the best answer. Remember to use your knowledge of chemical symbols and subscripts.
1. What does the subscript number in a chemical formula represent?
The atomic number of the element
The number of atoms of that element in the compound
The total number of elements in the compound
The mass number of the element
2. Which of the following is the chemical formula for water?
CO2
O2
H2O
NaCl
3. A chemical formula uses chemical and to show the composition of a compound.
4. The chemical symbol for Oxygen is .
5. In the formula C6H12O6, there are atoms of Carbon.
6. Explain the difference between an element and a compound.
7. All chemical formulas contain at least two different elements.
True
False
8. The chemical formula for table salt is NaCl.
True
False
Match the chemical formula with its common name.
9. CH4
a. Carbon Dioxide
10. CO2
b. Methane
11. O3
c. Ozone
Related Worksheets
Chemical Names and Formulas Worksheet
A Grade 8 science worksheet covering chemical names, formulas, and basic bonding concepts.
Grade 8 Physical Properties Worksheet
Explore the physical properties of matter, including states of matter, density, melting point, and solubility, with this Grade 8 science worksheet.
Lewis Dot Diagram Worksheet
Explore the basics of Lewis dot diagrams, valence electrons, and chemical bonding for Grade 8 science students.
Atomic Models Worksheet
Explore the history and development of atomic models, from Dalton to Bohr, with this engaging Grade 8 science worksheet.
Ions and Formula Units Worksheet
Explore the basics of ions, cations, anions, and how they combine to form neutral ionic compounds and formula units.
Grade 8 Science: Physical Properties
This worksheet covers key concepts of physical properties for Grade 8 science students, including identification, examples, and distinctions from chemical properties.
Chemistry Lab Safety Worksheet
A worksheet covering essential chemistry lab safety rules and practices for 8th-grade science students.
Grade 8 Science: Classification and Changes
This worksheet covers classification of matter, physical and chemical changes, and states of matter for Grade 8 science.