Chapter 11 Review: Chemical Equations

Front

What type of reaction is represented by the equation: 3 Pb + 2 H₃PO₄ → 3 H₂ + Pb₃(PO₄)₂?

Back

Single Replacement

Front

When balancing chemical equations, what can you only add, change, or remove?

Back

Coefficients

Front

Balance the following equation: ____ Fe + ____ Cl₂ → ____ FeCl₃

Back

2, 3, 2

Front

What type of reaction is represented by the equation: 2 H₃AsO₄ → As₂O₅ + 3 H₂O?

Back

Decomposition

Front

What is an example of a decomposition reaction?

Back

2 H₂O → 2 H₂ + O₂

Front

Define a synthesis reaction.

Back

A reaction where two or more substances combine to form a new compound.

Front

What is a combustion reaction?

Back

A reaction that involves the burning of a substance in the presence of oxygen, producing heat and light.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What are subscripts in a chemical formula?

Back

Numbers written below and to the right of an element symbol indicating the number of atoms of that element in a molecule.