Balancing Chemical Equations

Front

What is the left part of a chemical equation called?

Back

Reactants

Front

How many Hydrogen atoms are in 4H₂O?

Back

8

Front

What is the little number after an element in a chemical equation called?

Back

Subscript

Front

What is the number before a chemical formula called?

Back

Coefficient

Front

Is this balanced? Al + O₂ → 2Al₂O₃

Back

No

Front

What do we call the right part of a chemical equation?

Back

Products

Front

What is the purpose of balancing a chemical equation?

Back

To ensure the law of conservation of mass is followed.

Front

What does a coefficient indicate in a chemical equation?

Back

The number of molecules or moles of a substance.

Front

What is the total number of atoms in the equation 2H₂ + O₂ → 2H₂O?

Back

6 atoms (4 H + 2 O).

Front

What is the difference between a coefficient and a subscript?

Back

A coefficient indicates the number of molecules, while a subscript indicates the number of atoms in a molecule.