Atoms & Molecules: IXL E5-E8

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is an elementary substance?

Back

An elementary substance is a pure chemical substance that cannot be broken down into simpler substances by chemical means; it consists of only one type of atom.

Front

What is the difference between a compound and an element?

Back

A compound is made up of two or more different elements chemically bonded together, while an element is a pure substance that consists of only one type of atom.

Front

What is ammonia commonly used for?

Back

Ammonia is commonly used by farmers as a fertilizer to help grow crops.

Front

What is methane and where is it commonly found?

Back

Methane is a compound that is a major component of natural gas, commonly used for heating homes.

Front

What is the chemical formula for ammonia?

Back

The chemical formula for ammonia is NH3.

Front

What is the chemical formula for methane?

Back

The chemical formula for methane is CH4.

Front

What is the significance of fluorine in industry?

Back

Fluorine is used in the production of certain types of waterproof clothing and other industrial applications.

Front

What is hydrogen sulfide and why is it significant?

Back

Hydrogen sulfide is a poisonous gas produced by certain bacteria; it is significant due to its toxicity and presence in swamps and marshes.

Front

What is the chemical formula for hydrogen sulfide?

Back

The chemical formula for hydrogen sulfide is H2S.