3. Matter and Energy

In the classification of matter, what is the smallest unit of a compound that retains the compound’s chemical properties?

In the classification of matter, what is the smallest unit of a compound that still retains the chemical properties of that compound?

Table salt (chemical formula $NaCl$) is best classified as which type of matter?

In the context of classifying matter, steel is an alloy mainly composed of which element?

In the classification of matter, which element is characteristic of organic compounds?

All organic compounds must contain which element?

In the classification of matter, what is the smallest unit of a compound that still retains the compound’s chemical properties?

In the context of classifying matter, which of the following is NOT an organic compound?

In the classification of matter, how is milk best classified?

Copper wire is primarily made of copper. How should copper wire be classified as a type of matter?

Which element makes up most of Earth's atmosphere by volume?

Which statement best describes an element in the classification of matter?

Aluminum foil is primarily made of aluminum metal. In the classification of matter, aluminum is best classified as which of the following?

In the classification of matter, what is the smallest unit of a chemical compound that still retains the compound’s chemical properties?

In the classification of matter, organic compounds are defined as carbon-containing compounds. All organic compounds contain which element?