Logo
search
menuicon
thubnail
Bilik Melarikan Diri Sekolah
Gaya Bebas
Universiti
Sains
Limiting Reactant - Chemistry with Miss Husna
Husna Dalia
2
Masalah tambahan (10/ 20)
Allow incorrect answer
Tunjukkan jawapan
public kuiz

# 1

pilihan

Which statement best describes the limiting reactant?

  • The reactant with the smallest mass.
  • The reactant that determines the amount of product formed.
  • The reactant with the highest mole ratio.
  • The reactant left over after the reaction.

# 2

pilihan

Which statement best describes the excess reactant?

  • It is always the reactant in the smallest quantity.
  • It limits the reaction from continuing.
  • It remains after the reaction is complete.
  • It reacts completely in the reaction.

# 3

pilihan

Why is it important to identify the limiting reactant in industry?

  • To increase waste.
  • To predict the amount of product that can be made.
  • To find the fastest reactant.
  • To stop a reaction early.

# 4

pilihan

If 3.0 moles of A react with 4.5 moles of B to produce AB₂ according to: A + 2B → AB₂ What is the limiting reactant?

  • A
  • B
  • AB₂

# 5

pilihan

When calculating the limiting reactant, the first step is to:

  • Write the balanced chemical equation.
  • Calculate the moles (available)
  • Calculate the moles (needed)
  • Identify the products.

# 6

pilihan

Which of the following is NOT a step in finding the limiting reactant?

  • Write a balanced equation.
  • Calculate moles of reactants.
  • Compare mole available to mole needed.
  • Ignore the mole ratio.

# 7

pilihan

A reaction has 2 reactants, R and S. R is limiting. What happens if more R is added?

  • More product can be formed.
  • Less product will be formed.
  • Less product will be formed.
  • The reaction will stop immediately.

# 8

pilihan

Reaction: N₂ + 3H₂ → 2NH₃ Given: 2.0 mol N₂ and 5.0 mol H₂. Find the limiting reactant.

  • N₂
  • H₂
  • NH₃
  • Both are limiting

# 9

pilihan

The excess reactant is:

  • The reactant with more atoms.
  • The one completely consumed.
  • The one remaining after the reaction.
  • Always the one with the smaller mass.

# 10

pilihan

Reaction: 2H₂ + O₂ → 2H₂O Given: 3.0 mol H₂ and 2.0 mol O₂. Find the limiting reactant.

  • H₂
  • O₂
  • H₂O
  • All are limiting
Google Classroom Share