Balancing Chemical Equations

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation, in accordance with the Law of Conservation of Mass.

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that matter cannot be created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What type of reaction is represented by the equation: Pb(NO3)2 + KI → PbI2 + KNO3?

Back

This is a Double Replacement reaction.

Front

How do you identify a Synthesis reaction?

Back

A Synthesis reaction occurs when two or more reactants combine to form a single product.

Front

What is a Decomposition reaction?

Back

A Decomposition reaction is when a single compound breaks down into two or more simpler products.

Front

What is a Single Replacement reaction?

Back

A Single Replacement reaction occurs when one element replaces another element in a compound.

Front

What is a Double Replacement reaction?

Back

A Double Replacement reaction involves the exchange of ions between two compounds, forming two new compounds.

Front

Balance the equation: HgO → ?

Back

2Hg + O2 (Balanced equation: 2HgO → 2Hg + O2)

Front

Balance the equation: ___ Mg + ___ O2 → ___ MgO

Back

2, 1, 2 (Balanced equation: 2Mg + O2 → 2MgO)