Balancing Chemical Equations

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas to show the reactants and products.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change in a reaction, located on the left side of the arrow.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction, located on the right side of the arrow.

Front

What does the arrow in a chemical equation represent?

Back

The direction of the reaction, indicating that reactants are transformed into products.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a chemical formula to indicate the number of molecules or moles of that substance.

Front

What does it mean if a chemical equation is already balanced?

Back

It means that the number of atoms of each element is the same on both sides of the equation.

Front

Balance the equation: __C + __O₂ --> __CO₂.

Back

1, 1, 1

Front

Balance the equation: __Fe + __O₂ --> __Fe₂O₃.

Back

4, 3, 2