Understand Conservation of Mass in Reactions

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that in a closed system, the mass of the reactants must equal the mass of the products in a chemical reaction.

Front

How do you determine if a chemical equation is balanced?

Back

A chemical equation is balanced when the number of atoms of each element is the same on both sides of the equation.

Front

What happens to atoms during a chemical reaction according to the conservation of mass?

Back

Atoms are rearranged during a chemical reaction, but they are neither created nor destroyed, maintaining the same total mass.

Front

In the equation @@6CO_2 + 6H_2O ightarrow C_6H_{12}O_6 + 6O_2@@, how many carbon atoms are present on each side?

Back

There are 6 carbon atoms on both the left and right sides of the equation.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures that the Law of Conservation of Mass is upheld, showing that mass is conserved during the reaction.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction, found on the left side of a chemical equation.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction, found on the right side of a chemical equation.

Front

How many hydrogen atoms are in the products of the equation @@6CO_2 + 6H_2O ightarrow C_6H_{12}O_6 + 6O_2@@?

Back

Front

What does it mean for a chemical equation to be unbalanced?

Back

An unbalanced chemical equation has a different number of atoms for one or more elements on each side, violating the Law of Conservation of Mass.

Front

What is the role of coefficients in a chemical equation?

Back

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