Elements, Counting Atoms and Balancing Equations

Front

What is the symbol for magnesium?

Back

Mg

Front

What are the reactants in the equation 2H₂ + O₂ → 2H₂O?

Back

2H₂ + O₂

Front

What is the symbol for beryllium?

Back

Be

Front

What is the symbol for carbon?

Back

C

Front

What is a coefficient in a chemical equation?

Back

The large number to the left of a formula.

Front

What is the symbol for oxygen?

Back

O

Front

What is the symbol for nitrogen?

Back

N

Front

What is the symbol for hydrogen?

Back

H

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of an element in a molecule.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.