Chemical Equations and Reaction Types

What observations could indicate a chemical reaction has taken place?

• A change in color.

• A change in temperature.

• The evolution of a gas.

• A change in odor.

• A change in shape.

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

Balance the following equation: __NaF + __Cl₂ → __NaCl + __F₂

• 1, 2 ,1, 2

• 2, 1, 2, 1

• 2, 3, 2, 3

• 3, 2, 3, 2

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 product 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