Semester Exam Chemistry

Front

What is the chemical formula for ammonia?

Back

NH₃

Front

How many nitrogen atoms are in the chemical formula NH₃?

Back

1

Front

What is the chemical formula for sodium chloride?

Back

NaCl

Front

How many chlorine atoms are in the chemical formula NaCl?

Back

1

Front

What is an unbalanced chemical equation?

Back

An equation where the number of atoms of each element is not the same on both sides.

Front

Identify the unbalanced equation: 2Na + 2H₂O → 2NaOH + H₂

Back

2Na + 2H₂O → 2NaOH + H₂ is unbalanced.

Front

What is a product in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

In the reaction H₂ + O₂ → H₂O, what is H₂O?

Back

Product

Front

What type of reaction is characterized by the combination of two or more substances to form a single product?

Back

Synthesis reaction.

Front

What type of reaction is characterized by the breakdown of a single compound into two or more products?

Back

Decomposition reaction.