Chemical Reaction Quiz

Identify the reaction:

Ca + O 🡪 CaO

• Synthesis

• Combustion

• Decomposition

• Acid / Base

Identify the following reaction:

Br + LiI 🡪LiBr + I

• Synthesis

• Combustion

• Single Replacement

• Double Replacement

Identify the following reaction:

MgO + HCl 🡪 MgCl₂ + H₂O

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Identify the following reaction:

CaCO₃ → CaO + CO₂

• Synthesis

• Combustion

• Decomposition

• Double Replacement

Identify the following reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

• Synthesis

• Combustion

• Acid / Base

• Decomposition

Balance the following equation:

_____Zn + _____HCl 🡪 _____ZnCl₂ + _____H₂

• 2, 2, 1, 1,

• 1, 1, 1 , 1

• 1, 2, 1, 1

• 1, 2, 2, 1,

Balance the following equation:

_____CH₄ + _____O₂ 🡪 _____CO₂ + _____H₂O

• 1, 2, 1, 2

• 2, 1, 2 , 1

• 1, 2, 1, 1

• 1, 1, 2, 1

Balance the equation:

_____Mg + _____Mn₂O₃ 🡪 _____MgO + _____Mn

• 2, 1, 3, 2

• 3, 1, 3, 2

• 1, 2, 1, 2

• 3, 3, 1, 2

When balancing equations, you must add ___________ in front of the chemical formulas in the equation.

• Subscripts

• Coefficients

• Exponents

• Arrows

A chemical reaction takes place when atoms of one or more substance are rearranged to form _________ substances.

• the same

• different

• nonexistent