Chemical Names and Formulas Worksheet
A Grade 8 science worksheet covering chemical names, formulas, and basic bonding concepts.
Includes
Standards
Topics
Chemical Names and Formulas
Name:
Date:
Score:
Read each question carefully and provide your answer in the space provided. Show all work for calculations.
1. What is the chemical formula for water?
CO2
H2O
NaCl
O2
2. Which of the following is the correct name for the compound with the formula NaCl?
Sodium chlorine
Sodium chloride
Chlorine sodium
Salt chloride
3. The number written as a subscript in a chemical formula indicates the number of of that element in the compound.
4. An ionic bond involves the of electrons between atoms.
5. Explain the difference between an element and a compound.
6. All chemical formulas represent molecules.
True
False
7. The chemical formula for carbon dioxide is CO.
True
False
Match the chemical name with its correct formula.
8. Methane
a. O2
9. Oxygen
b. CH4
10. Carbon Dioxide
c. CO2
11. Look at the illustration below. Does it represent an ionic bond or a covalent bond? Explain your reasoning.
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