Chemical formulas

Front

How many Hydrogen atoms (H) are in a molecule of H₂O?

Back

2

Front

The small number to the right of an elemental symbol (H₂) is called?

Back

a subscript

Front

A mixture that can be easily separated into its different parts (think fruit salad) is called?

Back

heterogeneous mixtures

Front

More than two atoms stuck together is called a ...................

Back

molecule

Front

How many carbon atoms (C) are in a CO₂ molecule?

Back

2

Front

What is the chemical formula for water?

Back

H₂O

Front

What does a coefficient in a chemical formula indicate?

Back

The number of molecules or atoms of a substance

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

Homogeneous mixtures are uniform in composition, while heterogeneous mixtures are not.

Front

What is the chemical formula for carbon dioxide?

Back

CO₂

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.