Grade 8 Science: Word Equations
This worksheet helps Grade 8 students understand and practice writing word equations for chemical reactions, identifying reactants and products.
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Grade 8 Science: Word Equations
Name:
Date:
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Read each question carefully and provide your answers in the space provided. For word equations, identify the reactants and products, and write the balanced word equation.
1. In a chemical reaction, the starting materials are called , and the new substances formed are called .
2. The arrow in a word equation means ' ' or ' '.
3. Write the word equation for the reaction where hydrogen gas reacts with oxygen gas to produce water.
4. Iron metal rusts when it reacts with oxygen in the air to form iron (III) oxide. Write the word equation for this reaction.
5. Which of the following is a reactant in the word equation: Methane + Oxygen → Carbon Dioxide + Water?
Carbon Dioxide
Water
Methane
Both a and b
6. In the reaction: Sodium + Chlorine → Sodium Chloride, what is the product?
Sodium
Chlorine
Sodium Chloride
None of the above
7. Reactants are always written on the right side of the arrow in a word equation.
True
False
8. The '+' sign in a word equation means 'and'.
True
False
9. Consider the word equation: Glucose + Oxygen → Carbon Dioxide + Water. List the reactants and products.
Reactants:
Products:
10. When baking soda (sodium bicarbonate) reacts with vinegar (acetic acid), carbon dioxide gas, water, and sodium acetate are produced. Write the word equation for this reaction.
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