Front

What is an unbalanced chemical equation?

Back

An unbalanced chemical equation is a representation of a chemical reaction where the number of atoms of each element is not 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 in a chemical reaction, the mass of the reactants must equal the mass of the products.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

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.

Front

What does it mean to balance an equation?

Back

Balancing an equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

Front

What is the balanced equation for the reaction of nitrogen and oxygen to form nitrogen dioxide?

Back

2NO + O2 → 2NO2.

Front

What is the balanced equation for the production of potassium chloride from potassium and chlorine?

Back

2K(s) + Cl2(g) → 2KCl(s).

Front

What is the balanced equation for the reaction of methane and oxygen?

Back

CH4 + 2O2 → CO2 + 2H2O.

Front

What is the balanced equation for the reaction of potassium with magnesium bromide?

Back

2K + MgBr2 → 2KBr + Mg.