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Questions and Answers
What is the definition of chemistry?
What is the definition of chemistry?
- The study of matter and its properties
- The study of changes in the physical appearance of matter
- The measurement science consisting of a set of powerful ideas and methods
- The science that deals with the study of the changes in composition (correct)
What is matter?
What is matter?
- Anything that has weight and occupies space (correct)
- Anything that has weight but doesn't occupy space
- Anything that occupies space but doesn't have weight
- Anything that has neither weight nor occupies space
What is a molecule?
What is a molecule?
- The smallest particle of an element which enters into a chemical combination, composed of a nucleus and around it revolves the electrons.
- A combination of atoms of the same kind only
- The smallest particle of matter that can exist in a free state capable of entering into chemical change and is a combination of atoms of the same kind or different atoms. (correct)
- A particle that cannot be decomposed into simpler materials by ordinary processes
What does the term 'element' refer to in chemistry?
What does the term 'element' refer to in chemistry?
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What are the properties involved in changes of matter?
What are the properties involved in changes of matter?
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