Chemical Reactions Quiz

What is the reactant in the following chemical equation: H2 + O2 → H2O?

• H2 and O2

• H2O

• NaCl

• CO2

What is the product in the following chemical equation: 2H2 + O2 → 2H2O?

• H2O2

• H2O

• 2H2O

• HO

How many atoms of oxygen are there in the formula CaCO3?

• 3

• 4

• 2

• 1

How many atoms of hydrogen are there in the formula CH4?

• 3

• 4

• 2

• 1

Which type of chemical reaction is represented by the equation: A + B → AB?

• Combustion reaction

• Decomposition reaction

• Neutralization reaction

• Synthesis reaction

Which type of chemical reaction is represented by the equation: AB → A + B?

• Decomposition reaction

• Neutralization reaction

• Synthesis reaction

• Combustion reaction

Which type of chemical reaction is represented by the equation: AB + CD → AD + CB?

• Combustion reaction

• Synthesis reaction

• Double displacement reaction

• Decomposition reaction

Which type of chemical reaction is represented by the equation: A + BC → AC + B?

• Decomposition reaction

• Single displacement reaction

• Combustion reaction

• Double displacement reaction

What type of chemical reaction is this one?
Al(OH)₃ --> Al2O3  + H2O

• Decomposition
• Combustion
• Synthesis
• Single Replacement 

What type of chemical reaction is this one?
CUO + CO2 --> CuCO3

• Decomposition
• Combustion
• Synthesis
• Single Replacement