Balancing Equations and Reaction Types

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 in front of 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

What type of reaction is represented by the equation: 2Pb(NO3)2 → 2PbO + 4NO2 + O2?

Back

Decomposition reaction.

Front

What type of reaction is represented by the equation: 3Mg + N2 → Mg3N2?

Back

Synthesis reaction.

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

Identify the coefficients for the equation: ___ Al + ___ HCl → ___ H2 + ___ AlCl3.

Back

2, 6, 3, 2.

Front

Identify the coefficients for the equation: ___ Al + ___ FeO → ___ Al2O3 + ___ Fe.

Back

2, 2, 1, 2.

Front

What is a single replacement reaction?

Back

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