Question

1. what is the definition of chemistry? the study of the composition, structure, and properties of matter.
2. list the six main branches of chemistry mentioned in the text. organic, inorganic, physical, analytical, biochemistry, and theoretical.
3. what is the difference between basic research and applied research?
4. what are the two properties that define matter?
5. what is the difference between an atom and an element?

Explanation:

1. Chemistry is defined as the study of the composition, structure, and properties of matter.
2. The six main branches are Organic, Inorganic, Physical, Analytical, Biochemistry, and Theoretical.
3. Basic research aims to expand knowledge for its own sake, while applied research seeks to solve practical problems.
4. Matter is defined by having mass and occupying space (volume).
5. An atom is the smallest unit of an element that retains its chemical properties. An element is a pure substance made up of only one type of atom.

Answer:

1. Chemistry is the study of the composition, structure, and properties of matter.
2. Organic, Inorganic, Physical, Analytical, Biochemistry, Theoretical.
3. Basic research is for knowledge - expansion, applied research is for practical problem - solving.
4. Mass and volume.
5. An atom is the smallest unit of an element with its chemical properties; an element is a pure substance of one - type atoms.