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 of each element is the same on both sides of the equation.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What are coefficients in a chemical equation?

Back

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

Front

How do you determine the coefficients needed to balance a chemical equation?

Back

To determine coefficients, start by counting the number of atoms of each element in the reactants and products, then adjust the coefficients to equalize the number of atoms on both sides.

Front

What is the balanced equation for the combustion of methane (CH4)?

Back

The balanced equation is @@ ext{1} ext{CH}_4 + ext{2} ext{O}_2 ightarrow ext{1} ext{CO}_2 + ext{2} ext{H}_2 ext{O}@@.

Front

What is the balanced equation for the reaction of nitric acid and sodium bicarbonate?

Back

The balanced equation is @@ ext{HNO}_3 + ext{NaHCO}_3 ightarrow ext{NaNO}_3 + ext{H}_2 ext{O} + ext{CO}_2@@.

Front

What is the balanced equation for the formation of water from hydrogen and oxygen?

Back

The balanced equation is @@ ext{2} ext{H}_2 + ext{1} ext{O}_2 ightarrow ext{2} ext{H}_2 ext{O}@@.

Front

What is the balanced equation for the combustion of sulfur (S8)?

Back

The balanced equation is @@ ext{12} ext{S}_8 + ext{8} ext{O}_2 ightarrow ext{12} ext{SO}_3@@.

Front

What is the balanced equation for the reaction between sodium chloride and fluorine?

Back

The balanced equation is @@ ext{2} ext{NaCl} + ext{F}_2 ightarrow ext{2} ext{NaF} + ext{Cl}_2@@.