Limiting Reactants Worksheet
This worksheet focuses on understanding limiting and excess reactants in chemical reactions for Grade 10 Chemistry students.
Includes
Standards
Topics
Limiting Reactants Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is a limiting reactant?
The reactant that is completely consumed in a chemical reaction.
The reactant that is left over after a reaction.
The reactant with the largest molar mass.
The reactant that speeds up the reaction.
2. In the reaction 2H₂ + O₂ → 2H₂O, if you have 4 moles of H₂ and 1 mole of O₂, which is the limiting reactant?
H₂
O₂
H₂O
Neither
3. The reactant that determines the maximum amount of product that can be formed is called the .
4. When a chemical reaction stops because one of the reactants is completely used up, that reactant is the .
5. The excess reactant is the one that produces the least amount of product.
True
False
6. Identifying the limiting reactant is important for maximizing product yield in industrial processes.
True
False
7. Consider the reaction: N₂(g) + 3H₂(g) → 2NH₃(g). If you start with 7.0 g of N₂ and 1.5 g of H₂, determine the limiting reactant. (Atomic masses: N=14.01 g/mol, H=1.01 g/mol)
8. Observe the image below depicting a chemical reaction. In general terms, how does this image relate to the concept of limiting reactants?
