Balance Equations

Front

What is a balanced equation?

Back

A balanced equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during a chemical reaction.

Front

What are reactants in a chemical equation?

Back

Reactants are the substances that undergo a chemical change in a reaction, found on the left side of the equation.

Front

What are products in a chemical equation?

Back

Products are the substances formed as a result of a chemical reaction, found on the right side of the equation.

Front

How do you determine if a chemical equation is balanced?

Back

Count the number of atoms of each element on both sides of the equation. If they are equal, the equation is balanced.

Front

What does the coefficient in a chemical equation represent?

Back

The coefficient indicates the number of molecules or moles of a substance involved in the reaction.

Front

What is the law of conservation of mass?

Back

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

Front

How many sodium (Na) atoms are in 6NaCl?

Back

6 sodium (Na) atoms.

Front

Is the equation Al + O2 --> 2Al2O3 balanced?

Back

No, it is not balanced.

Front

What is the left part of a chemical equation called?

Back

Reactants.

Front

Balance the equation: _Mg + _Cl2 --> _MgCl2. What is the answer?

Back

The equation is already balanced.