Grade 12 Chemical Equation Writing Worksheet

Chemical Equation Writing Practice

Read each question carefully and follow the instructions to write and balance the chemical equations. Ensure all equations are balanced and include states of matter where appropriate.

Write the correct chemical formula for each of the following compounds:

1. Sodium sulfate:  

2. Dinitrogen pentoxide:  

3. Iron(III) chloride:  

4. Copper(II) nitrate:  

Balance the following chemical equations:

1.   N₂(g) +   H₂(g) →   NH₃(g)

2.   C₃H₈(g) +   O₂(g) →   CO₂(g) +   H₂O(g)

3.   Al(s) +   HCl(aq) →   AlCl₃(aq) +   H₂(g)

Write balanced chemical equations for the following reactions, including states of matter:

1. Solid potassium reacts with liquid water to produce aqueous potassium hydroxide and hydrogen gas.

2. Aqueous silver nitrate reacts with aqueous sodium chloride to form solid silver chloride and aqueous sodium nitrate.

3. Methane gas (CH₄) burns in oxygen gas to produce carbon dioxide gas and water vapor.

1. Which of the following represents a balanced chemical equation for the combustion of ethanol (C₂H₅OH)?

Indicate whether each statement is True or False:

1. Coefficients in a chemical equation represent the number of atoms of each element.