Balancing and Types of Reactions Practice

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, following the law of conservation of mass.

Front

What are coefficients in a chemical equation?

Back

Coefficients are the numbers placed before compounds in a chemical equation to indicate the number of molecules or moles of that substance.

Front

What is the purpose of balancing chemical equations?

Back

The purpose is to ensure that the same number of atoms of each element is present on both sides of the equation, reflecting the conservation of mass.

Front

Balance the following equation: ____ H₂ + ____ O₂ → ____ H₂O

Back

2, 1, 2

Front

What are subscripts in a chemical formula?

Back

Subscripts are the small numbers written to the lower right of an element symbol that indicate the number of atoms of that element in a molecule.

Front

What is the difference between coefficients and subscripts?

Back

Coefficients indicate the number of molecules, while subscripts indicate the number of atoms in a molecule.

Front

Balance the following equation: ____ C₃H₈ + ____ O₂ → ____ CO₂ + ____ H₂O

Back

1, 5, 3, 4

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another in a compound.