Excess Reactant Chemistry Worksheet
A Grade 9 Science worksheet focusing on understanding and calculating excess reactants in chemical reactions.
Includes
Standards
Topics
Excess Reactant Chemistry Worksheet
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. What is the definition of an excess reactant?
The reactant that is completely consumed in a chemical reaction.
The reactant that is left over after the reaction has stopped.
The product formed in the largest quantity.
The reactant with the highest molar mass.
2. In a reaction where 5 moles of H₂ react with 2 moles of O₂ to produce H₂O, which is the limiting reactant?
H₂
O₂
H₂O
Neither, both are completely consumed.
1. The reactant that is completely used up in a chemical reaction is called the reactant.
2. The reactant that remains after a chemical reaction has stopped is known as the reactant.
3. To determine the excess reactant, you first need to identify the reactant.
1. Explain the importance of identifying the excess reactant in a chemical reaction.
Consider the reaction: 2Na + Cl₂ → 2NaCl
If you start with 4.6 g of Na and 7.1 g of Cl₂:
a) Determine the limiting reactant. Show your work.
b) Determine the excess reactant. Show your work.
c) Calculate the mass of the excess reactant remaining after the reaction.
1. The limiting reactant determines the amount of product formed.
True
False
Related Worksheets
Single Replacement Reactions
Explore the principles of single replacement reactions in chemistry with this comprehensive worksheet for Grade 9 students.
History of Chemistry Timeline
Explore key discoveries and scientists that shaped the field of chemistry over time.
Hydrocarbons Worksheet
A Grade 9 science worksheet covering the basics of hydrocarbons, including their definition, types, and properties.
Nuclear Changes: Grade 9 Science
Explore the fundamentals of nuclear changes, including radioactivity, nuclear fission, and nuclear fusion, with this comprehensive Grade 9 science worksheet.
Molecular Compound Naming Worksheet
Practice naming molecular compounds using prefixes and suffixes.
Empirical and Molecular Formula Worksheet
Grade 9 Chemistry worksheet focusing on understanding and calculating empirical and molecular formulas.
VSEPR Theory Worksheet
Explore VSEPR theory with this worksheet, covering molecular geometries, electron domains, and bond angles for various molecules.
Acid Base Nomenclature Worksheet
A Grade 9 science worksheet on acid and base nomenclature, covering common acids, bases, and pH concepts.