Grade 12 Chemistry: Word Equations
A worksheet for Grade 12 Chemistry students focusing on writing and balancing word equations for chemical reactions.
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Grade 12 Chemistry: Word Equations
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Read each question carefully and follow the instructions. Write out the full word equations, including states of matter where appropriate, and ensure they are balanced.
Write the complete word equation for each of the following chemical reactions:
1. Solid magnesium reacts with aqueous hydrochloric acid to produce aqueous magnesium chloride and hydrogen gas.
2. Gaseous methane burns in oxygen gas to produce carbon dioxide gas and water vapor.
3. Solid iron reacts with chlorine gas to form solid iron(III) chloride.
Indicate whether the underlined substance is a reactant (True) or a product (False) in the given word equation.
1. Sodium metal reacts with water to produce sodium hydroxide and hydrogen gas. (Underlined: Sodium hydroxide)
True
False
2. When propane burns in oxygen, carbon dioxide and water are formed. (Underlined: Propane)
True
False
1. The word equation for the decomposition of hydrogen peroxide is: Hydrogen peroxide → Water + Oxygen. What does the arrow symbol (→) represent in this equation?
2. In the word equation 'Calcium carbonate → Calcium oxide + Carbon dioxide', identify all the reactants and products.
Match each symbol used in chemical equations with its correct description.
1. (g)
a. Indicates a solid state
2. (aq)
b. Indicates a gaseous state
3. (s)
c. Indicates an aqueous solution
4. (l)
d. Indicates a liquid state