Mr. Key's types of chemical reactions quiz

What type of chemical reaction would the following equation represent? 2H₂ + N₂ ↔ 2NH₃

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

What type of chemical reaction would the following equation represent? 2H₂ + N₂ ↔ 2NH₃

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Which type of reaction is represented by the following chemical equation? 2H₂O₂ → 2H₂O + O₂

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Which type of reaction is represented by the following chemical equation? 2HCl + Zn → ZnCl₂ + H₂

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Oxidation-Reduction

Which type of reaction is represented by the following chemical equation? HCl + NaOH ↔ H₂O + NaCl

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Which type of reaction is represented by the following chemical equation? CH₄ + 2O₂ → CO₂ + 2H₂O

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Balance the following equation: __ KCl + __ O₂ → __ KClO₃

• 4, 3, 3,

• 2, 2, 1

• 2, 3, 2

• 3, 4, 3

• 2, 2, 3

A reactant is:

• a material that takes no place in the reaction

• the material formed in the reaction

• the material being acted upon

• the process of reacting

A balanced chemical equation assumes all of the following except:

• the law of conservation of mass is true

• the amount of reactants does not equal the amount of product(s)

• matter can neither be created nor destroyed

• equal numbers of atoms of each kind exist on both sides of the arrow

What is the percent P (by mass) in H₃PO₄?

• 30.6%

• 31.6%

• 32.6%

• 33.6%