CHEM Test 1 (9th) 21-22

Physical Chemistry studies

• the relationship between the composition and physical properties of matter along with the changes in them.

• compounds of carbon and hydrogen (derivatives from petroleum) and their derivatives.

• none of the above

Inorganic Chemistry studies

• all elements and their compounds except those of compounds of carbon and hydrogen (derivatives of petroleum).

• the structure, composition, and chemical reactions of substances found in living organisms.

• none of the above

Biochemistry studies

• the manufacturing of chemical compounds on commercial scale.

• the structure, composition, and chemical reactions of substances found in living organisms

• none of the above

Nuclear Chemistry studies

• the radioactivity of compounds,nuclear processes and properties.

• the components of the environment and the effects of human activities on the environment.

• none of the above

Analytical Chemistry studies

• covalent compounds of carbon and hydrogen (petroleum derivatives) and their derivatives

• the separation and analysis of samples to identify its components.The separation can be qualitative or quantitative.

• none of the above

What is matter?

• The ability of an object to perform work

• Anything that has mass and occupies space

• None of the above

What is a substance?

• A piece of impure matter

• A piece of matter in a completely pure form

• None of the above

What is a mixture?

• A piece of matter formed by several substances

• A piece of matter formed by only one substance

• None of the above

Properties that are associated with the physical state of the substance E.g: colour, smell, taste, hardness, boiling points.

• Physical Properties

• Chemical Properties

• None of the above

Explain why orange juice is a mixture and not a substance